Watchguard Fireware Configuration Guide

WatchGuard®System Manager

Fireware Configuration Guide

WatchGuard Fireware Pro v8.0

ii WatchGuard System Manager

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ABOUT WATCHGUARD

WatchGuard is a leading provider of network security solutions for small- to mid-

sized enterprises worldwide, delivering integrated products and services that are

robust as well as easy to buy, deploy and manage. The company’s Firebox X family of

expandable integrated security appliances is designed to be fully upgradeable as an

organization grows and to deliver the industry’s best combination of security,

performance, intuitive interface and value. WatchGuard Intelligent Layered Security

architecture protects against emerging threats effectively and efficiently and provides

the flexibility to integrate additional security functionality and services offered

through WatchGuard. Every WatchGuard product comes with an initial LiveSecurity

Service subscription to help customers stay on top of the security landscape with

vulnerability alerts, software updates, expert security instruction and superior

customer care. For more information, please call (206) 521-8340 or visit

www.watchguard.com

.

Notice to Users

Information in this guide is subject to change without notice. Companies, names, and data used in examples

herein are fictitious unless otherwise noted. No part of this guide may be reproduced or transmitted in any

form or by any means, electronic or mechanical, for any purpose, without the express written permission of

WatchGuard Technologies, Inc.

Copyright, Trademark, and Patent Information

All trademarks or trade names mentioned herein, if any, are the property of their respective owners.

Guide Version: 8.0-050411

Complete copyright, trademark, patent, and licensing

information can be found in the

WatchGuard System

Manager User Guide

. A copy of this book is automatically

installed into a subfolder of the installation directory

called Documentation. You can also find it online at:

http://www.watchguard.com/help/documentation/

Fireware Configuration Guide iii

Contents

PART I

Introduction to Fireware Pro

CHAPTER 1 Introduction ...........................................................................3

Fireware Features and Tools ..................................................................3

Fireware User Interface ........................................................................4

Policy Manager window ........................................................................5

Firebox System Manager window ...........................................................6

CHAPTER 2 Monitoring Firebox Status .....................................................9

Starting Firebox System Manager ..........................................................9

Connecting to a Firebox .......................................................................9

Opening Firebox System Manager ........................................................10

Firebox System Manager Menus and Toolbar ........................................10

Setting refresh interval and pausing the display ......................................12

Seeing Basic Firebox and Network Status ............................................12

Using the Security Traffic Display .........................................................13

Monitoring status information .............................................................13

Setting the center interface ................................................................13

Monitoring traffic, load, and status .......................................................14

Firebox and VPN tunnel status .............................................................14

Monitoring Firebox Traffic ....................................................................16

Setting the maximum number of log messages .......................................16

Using color for your log messages ........................................................17

Copying log messages .......................................................................17

Learning more about a traffic log message .............................................17

Clearing the ARP Cache ......................................................................18

Using the Performance Console ..........................................................18

Types of counters .............................................................................18

Defining counters .............................................................................19

iv WatchGuard System Manager

Viewing the performance graph ...........................................................21

Viewing Bandwidth Usage ...................................................................21

Viewing Number of Connections by Policy .............................................22

Viewing Information About Firebox Status ............................................24

Status Report ..................................................................................24

Authentication List ............................................................................25

Blocked Sites ...................................................................................26

Security Services ..............................................................................27

Using HostWatch ...............................................................................28

The HostWatch window ......................................................................28

Controlling the HostWatch window .......................................................29

Changing HostWatch view properties ....................................................30

Adding a blocked site from HostWatch ..................................................30

Pausing the HostWatch Display ............................................................30

CHAPTER 3 Setting Up Your Firebox .......................................................31

Working with Licenses ........................................................................31

Adding licenses ................................................................................32

Deleting a license .............................................................................32

Seeing the active features ..................................................................33

Seeing the properties of a license ........................................................34

Downloading a license key ..................................................................34

Working with Aliases ..........................................................................34

Creating an alias ..............................................................................35

Using Logging ....................................................................................35

Categories of log messages ................................................................36

Designating log servers for a Firebox ....................................................36

Adding a log server ...........................................................................37

Setting log server priority ...................................................................37

Activating Syslog logging ....................................................................38

Enabling advanced diagnostics ............................................................38

Using Global Settings .........................................................................39

VPN ...............................................................................................40

ICMP error handling ..........................................................................40

TCP SYN checking .............................................................................41

TCP maximum segment size adjustment ...............................................41

Setting NTP Servers ...........................................................................42

Working with SNMP ............................................................................42

Using MIBs ......................................................................................43

PART II

Protecting Your Network

CHAPTER 5 Basic Firebox Configuration .................................................47

Opening a Configuration File ...............................................................47

Fireware Configuration Guide v

Opening a working configuration file .....................................................47

Opening a local configuration file .........................................................48

Making a new configuration file ...........................................................49

Saving a Configuration File .................................................................49

Saving a configuration to the Firebox ....................................................49

Saving a configuration to a local hard drive ............................................50

Changing the Firebox passphrases ......................................................50

Setting the Time Zone ........................................................................51

Setting a Firebox Friendly Name ..........................................................51

Creating Schedules ............................................................................52

CHAPTER 6 Network Setup and Configuration ........................................55

Making a New Configuration File .........................................................55

Configuring the external interface ........................................................58

Adding Secondary Networks ................................................................60

Adding WINS and DNS Server Addresses .............................................61

Configuring Routes .............................................................................62

Adding a network route ......................................................................62

Adding a host route ...........................................................................63

Setting Firebox Interface Speed and Duplex .........................................63

CHAPTER 7 Configuring Policies .............................................................65

Creating Policies for your Network .......................................................65

Adding Policies ..................................................................................66

Changing the Policy Manager View .......................................................66

Adding a policy ................................................................................67

Making a custom policy template .........................................................68

Adding more than one policy of the same type ........................................69

Deleting a policy ...............................................................................69

Configuring Policy Properties ...............................................................70

Setting access rules, sources, and destinations .......................................70

Setting logging properties ...................................................................71

Configuring static NAT .......................................................................73

Setting advanced properties ................................................................74

Setting Policy Precedence ...................................................................75

Using automatic order .......................................................................75

Setting precedence manually ..............................................................77

CHAPTER 8 Configuring Proxied Policies ................................................79

Defining Rules ...................................................................................79

Adding rulesets ................................................................................80

Using advanced rules view ..................................................................81

Customizing Logging and Notification for proxy rules .............................82

Configuring log messages and notification for a proxy policy ......................82

vi WatchGuard System Manager

Configuring log messages and alarms for a proxy rule ..............................82

Using dialog boxes for alarms, log messages, and notification ....................82

Configuring the SMTP Proxy ................................................................83

Configuring general settings ................................................................84

Configuring ESMTP parameters ............................................................85

Configuring authentication rules ..........................................................86

Defining content type rules .................................................................87

Defining file name rules .....................................................................87

Configuring the Mail From and Mail To rules ...........................................87

Defining header rules ........................................................................87

Defining antivirus responses ...............................................................87

Changing the deny message ...............................................................88

Configuring the IPS (Intrusion Prevention System) ....................................88

Configuring proxy and antivirus alarms for SMTP .....................................89

Configuring the FTP Proxy ...................................................................89

Configuring general settings ................................................................90

Defining commands rules for FTP .........................................................90

Setting download rules for FTP ............................................................90

Setting upload rules for FTP ................................................................91

Enabling intrusion prevention for FTP ....................................................91

Configuring proxy alarms for FTP .........................................................91

Configuring the HTTP Proxy .................................................................91

Configuring settings for HTTP requests .................................................92

Configuring general settings for HTTP responses ......................................94

Setting header fields for HTTP responses ...............................................94

Setting content types for HTTP responses ..............................................94

Setting cookies for HTTP responses ......................................................94

Setting HTTP body content types ..........................................................95

Changing the deny message ...............................................................95

Configuring intrusion prevention for HTTP ...............................................96

Defining proxy alarms for HTTP ............................................................96

Configuring the DNS Proxy ..................................................................96

Configuring general settings for the DNS proxy ........................................97

Configuring DNS OPcodes ...................................................................97

Configuring DNS query types ...............................................................98

Configuring DNS query names .............................................................99

Enabling intrusion prevention for the DNS proxy ......................................99

Configuring DNS proxy alarms .............................................................99

Configuring the TCP Proxy ...................................................................99

Configuring general settings for the TCP proxy ........................................99

Enabling intrusion prevention for the TCP proxy .....................................100

CHAPTER 9 Working with Firewall NAT ..................................................101

Using Dynamic NAT ..........................................................................102

Adding global dynamic NAT entries .....................................................102

Fireware Configuration Guide vii

Reordering dynamic NAT entries ........................................................103

Policy-based dynamic NAT entries ......................................................103

Using 1-to-1 NAT ..............................................................................103

Configuring Global 1-to-1 NAT ............................................................104

Configuring policy-based 1-to-1 NAT ....................................................105

Configuring static NAT for a policy ......................................................105

CHAPTER 10 Implementing Authentication ...........................................107

How User Authentication Works ........................................................107

Using authentication from the external network ....................................107

Using authentication through a gateway Firebox to another Firebox ...........108

Authentication server types ..............................................................108

Using a backup authentication server .................................................108

Configuring the Firebox as an Authentication Server ...........................108

Setting up the Firebox as an authentication server .................................109

Configuring RADIUS Server Authentication .........................................110

Configuring SecurID Authentication ....................................................112

Configuring LDAP Authentication .......................................................113

Configuring Active Directory Authentication .......................................115

Configuring a Policy with User Authentication .....................................116

CHAPTER 11 Firewall Intrusion Detection and Prevention ....................119

Using Default Packet Handling Options ..............................................119

Spoofing attacks ............................................................................120

IP source route attacks ....................................................................120

“Ping of death” attacks ....................................................................120

Port space and address space attacks ................................................120

Flood attacks .................................................................................121

Unhandled Packets .........................................................................121

Distributed denial of service attacks ...................................................121

Setting Blocked Sites .......................................................................121

Blocking a site permanently ..............................................................122

Using an external list of blocked sites .................................................122

Creating exceptions to the Blocked Sites list .........................................122

Setting logging and notification parameters .........................................123

Blocking sites temporarily with policy settings ......................................124

Blocking Ports .................................................................................124

Blocking a port permanently .............................................................125

Automatically blocking IP addresses that try to use blocked ports .............125

Setting logging and notification for blocked ports ..................................126

CHAPTER 12 Using Signature-Based Security Services ........................127

Installing the Software Licenses ........................................................127

Configuring Gateway AntiVirus for E-mail ............................................128

viii WatchGuard System Manager

Configuring Gateway AntiVirus for E-mail in the SMTP Proxy .................129

Adding an SMTP Proxy with AntiVirus ..................................................130

Using Gateway AntiVirus for E-mail with more than one proxy ...................131

Getting Gateway AntiVirus for E-mail Status and Updates ....................131

Seeing service status ......................................................................131

Updating signatures manually ...........................................................132

Updating the antivirus software .........................................................132

Monitoring Gateway AntiVirus for E-mail .............................................133

Configuring Gateway AntiVirus for E-mail to record log messages ..............133

Configuring the Signature-Based Intrusion Prevention Service ..............134

Configuring Intrusion Prevention Service in a Proxy .............................134

Adding a proxy with Intrusion Prevention Service ...................................134

Using advanced HTTP proxy features ...................................................136

Getting Intrusion Prevention Service Status and Updates ....................137

Seeing service status ......................................................................137

Updating signatures manually ...........................................................138

PART III

Using Virtual Private Networks

CHAPTER 14 Introduction to VPNs .......................................................141

Tunneling Protocols ..........................................................................142

IPSec ...........................................................................................142

PPTP ...........................................................................................142

Encryption ....................................................................................142

Selecting an encryption and data integrity method ................................143

Authentication ...............................................................................143

Extended authentication ...................................................................143

Selecting an authentication method ....................................................143

IP Addressing ..................................................................................143

Internet Key Exchange (IKE) ..............................................................144

NAT and VPNs ..................................................................................144

Access Control ................................................................................144

Network Topology .............................................................................145

Meshed networks ...........................................................................145

......................................................................................... Hub-and-spoke networks 146

Tunneling Methods ...........................................................................147

WatchGuard VPN Solutions ...............................................................147

RUVPN with PPTP ...........................................................................148

Mobile User VPN .............................................................................148

Branch Office Virtual Private Network (BOVPN) .....................................148

VPN Scenarios .................................................................................149

Large company with branch offices: System Manager .............................150

Fireware Configuration Guide ix

Small company with telecommuters: MUVPN ........................................150

Company with remote employees: MUVPN with extended authentication ....151

CHAPTER 15 Configuring BOVPN with Manual IPSec ............................153

Before You Start ..............................................................................153

Configuring a Gateway ......................................................................153

Adding a gateway ...........................................................................153

Editing and deleting a gateway ..........................................................156

Making a Manual Tunnel ...................................................................156

Editing and deleting a tunnel .............................................................159

Making a Tunnel Policy .....................................................................160

CHAPTER 10 Configuring IPSec Tunnels ...............................................161

Management Server .........................................................................161

WatchGuard Management Server Passphrases ..................................162

Setting Up the Management Server ...................................................163

Adding Devices ................................................................................164

Updating a device’s settings ..............................................................165

Configuring a Firebox as a Managed Firebox Client (Dynamic Devices only) 165

Adding Policy Templates ...................................................................166

Get the current templates from a device ..............................................166

Make a new policy template .............................................................166

Adding resources to a policy template .................................................167

Adding Security Templates ................................................................167

Making Tunnels Between Devices ......................................................167

Drag-and-drop tunnel procedure .........................................................168

Using the Add VPN Wizard without drag-and-drop ..................................168

Editing a Tunnel ...............................................................................168

Removing Tunnels and Devices .........................................................169

Removing a tunnel ..........................................................................169

Removing a device ..........................................................................169

CHAPTER 11 Configuring RUVPN with PPTP ..........................................171

Configuration Checklist .....................................................................171

Encryption levels ............................................................................171

Configuring WINS and DNS Servers ...................................................172

Adding New Users to Authentication Groups ......................................173

Configuring Services to Allow Incoming RUVPN Traffic .........................174

By individual policy .........................................................................174

Using the Any policies ......................................................................174

Enabling RUVPN with PPTP ................................................................175

Enabling extended authentication ......................................................175

Adding IP Addresses for RUVPN Sessions ..........................................175

x WatchGuard System Manager

Preparing the Client Computers .........................................................176

Installing MSDUN and Service Packs ...................................................176

Creating and Connecting a PPTP RUVPN on Windows XP .....................177

Creating and Connecting a PPTP RUVPN on Windows 2000 .................177

Running RUVPN and accessing the Internet ..........................................178

Making outbound PPTP connections from behind a Firebox .....................178

PART IV

Increasing the Protection

CHAPTER 13 Advanced Networking ......................................................181

About Multiple WAN Support .............................................................181

Configuring multiple WAN support ......................................................182

Creating QoS Actions .......................................................................183

Using QoS in a multiple WAN environment ...........................................185

Dynamic Routing ..............................................................................185

Using RIP ........................................................................................185

RIP Version 1 .................................................................................186

RIP Version 2 .................................................................................188

Using OSPF .....................................................................................190

OSPF Daemon Configuration .............................................................190

Configuring Fireware to use OSPF .......................................................193

Using BGP .......................................................................................194

CHAPTER 14 Controlling Web Site Access ...........................................201

Getting Started with WebBlocker .......................................................201

Adding a WebBlocker Action to a Policy ..............................................202

Configuring a WebBlocker action .......................................................202

Scheduling a WebBlocker Action ........................................................207

CHAPTER 15 High Availability ...............................................................209

High Availability Requirements ..........................................................209

Installing High Availability .................................................................210

Configuring High Availability ..............................................................210

Manually Controlling HA ....................................................................211

Backing up an HA configuration .........................................................212

Upgrading Software in an HA Configuration ........................................212

Using HA with Signature-based Security Services ...............................212

Packet Filter Policies ........................................................................213

Any ..............................................................................................213

AOL .............................................................................................213

archie ..........................................................................................214

auth .............................................................................................214

Citrix ICA ......................................................................................214

Fireware Configuration Guide xi

Clarent-gateway ..............................................................................214

Clarent-command ...........................................................................215

CU-SeeMe .....................................................................................215

DHCP-Server/Client .........................................................................215

DNS .............................................................................................216

Entrust .........................................................................................216

finger ...........................................................................................216

FTP ..............................................................................................216

Gopher .........................................................................................216

GRE .............................................................................................217

HTTP ............................................................................................217

HTTPS ..........................................................................................217

HBCI ............................................................................................217

IDENT ...........................................................................................217

IGMP ...........................................................................................218

IKE ..............................................................................................218

IMAP ............................................................................................218

IPSec ...........................................................................................218

IRC ..............................................................................................218

Intel Video Phone ...........................................................................219

Kerberos v 4 and Kerberos v 5 ..........................................................219

LDAP ...........................................................................................219

LDAP-SSL ......................................................................................219

Lotus Notes ...................................................................................220

MSSQL-Monitor ..............................................................................220

MSSQL-Server ................................................................................220

MS Win Media ...............................................................................220

NetMeeting ...................................................................................220

NFS .............................................................................................220

NNTP ...........................................................................................221

NTP .............................................................................................221

OSPF ...........................................................................................221

pcAnywhere ...................................................................................221

ping .............................................................................................221

POP2 and POP3 .............................................................................222

PPTP ............................................................................................222

RADIUS and RADIUS-RFC ..................................................................222

RADIUS-Accounting and RADIUS-ACCT-RFC ...........................................222

RDP .............................................................................................223

RIP ..............................................................................................223

RSH .............................................................................................223

RealPlayer G2 ................................................................................223

Rlogin ..........................................................................................223

SecurID ........................................................................................224

SMB (Windows Networking) ..............................................................224

xii WatchGuard System Manager

SMTP ...........................................................................................224

SNMP ..........................................................................................224

SNMP-Trap ....................................................................................224

SQL*Net .......................................................................................225

SQL-Server ....................................................................................225

ssh ..............................................................................................225

Sun RPC .......................................................................................225

syslog ..........................................................................................225

TACACS ........................................................................................226

TACACS+ .......................................................................................226

TCP .............................................................................................226

TCP-UDP .......................................................................................226

UDP .............................................................................................226

telnet ...........................................................................................227

Timbuktu ......................................................................................227

Time ............................................................................................227

traceroute .....................................................................................227

UUCP ...........................................................................................227

WAIS ...........................................................................................228

WinFrame .....................................................................................228

WG-Auth .......................................................................................228

WG-Firebox-Mgmt ...........................................................................228

WG-Logging ...................................................................................229

WG-Mgmt-Server ............................................................................229

WG-SmallOffice-Mgmt ......................................................................229

WG-WebBlocker .............................................................................229

whois ...........................................................................................229

X11 .............................................................................................229

Yahoo Messenger ............................................................................230

Proxied Policies ...............................................................................230

DNS .............................................................................................230

FTP ..............................................................................................230

HTTP ............................................................................................230

SMTP ...........................................................................................231

TCP Proxy .....................................................................................231

Fireware Configuration Guide 1

PART I

Introduction to Fireware Pro

2 WatchGuard System Manager

Fireware Configuration Guide 3

CHAPTER 1 Introduction

WatchGuard® Fireware™ Pro is the next generation of security appliance software available from Watch-

Guard. Appliance software is a software application that is kept in the memory of your firewall hardware.

The Firebox uses the appliance software with a configuration file to operate.

Your organization’s security policy is a set of rules that define how you protect your computer network

and the information that passes through it. Fireware Pro appliance software has advanced features to

manage security policies for the most complex networks.

Fireware Features and Tools

WatchGuard® Fireware™ Pro includes many features to improve your network security.

Policy Manager for Fireware

Policy Manager gives you one user interface for basic firewall configuration tasks. Policy Manager

includes a full set of preconfigured packet filters and proxies. For example, to apply a packet filter for all

Telnet traffic, you add a Telnet packet filter. You can also make a custom packet filter for which you set

the ports, protocols, and other parameters. Careful configuration of IPS options can stop attacks such as

SYN Flood attacks, spoofing attacks, and port or address space probes.

Firebox System Manager

Firebox® System Manager gives you one interface to monitor all components of your Firebox. From Fire-

box System Manager, you can monitor the current condition of the Firebox or connect directly to get an

update on its configuration.

Network Address Translation

Network address translation (NAT) is a term used for one or more methods of IP address and port transla-

tion. Network administrators frequently use NAT to increase the number of computers which can to oper-

ate off one public IP address. It also hides the private IP addresses of computers on your network.

Fireware User Interface

4 WatchGuard System Manager

Firebox and third-party authentication servers

With Fireware, there are five methods to do authentication: Firebox, RADIUS, SecurID, LDAP, and Active

Directory.

Signature-based intrusion detection and prevention

When a new intrusion attack is identified, the qualities that make the virus or attack unique are identified

and recorded. These features are known as the signature. WatchGuard® Gateway AntiVirus for E-mail™

and Signature-Based Intrusion Prevention Service use these signatures to find viruses and intrusion

attacks. The Intrusion Prevention Service operates with all WatchGuard proxies. Gateway AntiVirus for E-

mail operates with the SMTP Proxy.

VPN creation and management

Fireware technology makes it easier to configure, manage, and monitor many IPSec VPN tunnels to

branch offices and end users.

Advanced networking features

Fireware lets you configure a maximum of four Firebox interfaces as external, or WAN, interfaces. You can

control the flow of traffic through more than one WAN interface to balance the volume of outgoing traf-

fic. The QoS feature in Fireware lets you set priority and bandwidth restrictions on each policy. The Fire-

box can also use the dynamic route protocols RIP, OSPF, and BGP. These protocols allow network devices

to update route tables dynamically.

Web traffic control

The WebBlocker feature uses the HTTP Proxy to apply a filter to Web traffic. You can set the hours in the

day that users can get access to the Web. You can also set categories of Web sites that users cannot

browse to.

High availability

High Availability supplies stateful failover for firewall and VPN connections. With High Availability, you

can have one Firebox operating in standby mode while the other Firebox continues to operate. The

standby Firebox automatically takes over firewall operations if the primary Firebox is unable to communi-

cate with the Internet.

Fireware User Interface

The primary components of the Fireware user interface are Policy Manager and Firebox System Manager.

Fireware Configuration Guide 5

Fireware User Interface

Policy Manager window

Policy Manager includes menus you use to manage your Firebox and build your configuration file. The

major menus and their options are as follows.

File menu

• Create a new configuration file

• Open a configuration file

• Save a configuration file to disk or to the Firebox

• Back up a Firebox

• Restore a Firebox

• Update the firmware on the Firebox

• Change passphrases

Edit menu

• Change, add, and delete policies

Setup menu

• Give the Firebox model, name, location, contact, and time zone

• View, add, and download licenses

• Add, edit, or remove aliases

• Set up log hosts

• Use internal and third-party authentication servers

• Create actions: a procedure to follow when a data stream matches an applicable specification

• Configure intrusion detection and prevention settings

• Blocked sites and blocked ports settings

• Update signatures and engine settings for signature-based intrusion prevention

• Enable Network Time Protocol and add NTP servers

• Enable SNMP traps and add SNMP management stations

• Configure global settings for the Firebox

Fireware User Interface

6 WatchGuard System Manager

Network menu

• Configure Firebox interfaces

• Configure dynamic NAT and 1-to-1 NAT

•View and add routes

• Configure dynamic routing using the RIP, OSPF, and BGP protocols

• Configure High Availability

VPN menu

• View and add gateways

• View and configure tunnels; change authentication, encryption, and advanced IPSec settings

• Add remote users using PPTP or MUVPN

• Enable the Firebox as a managed client

Firebox System Manager window

You use Firebox System Manager to see:

• Status of the Firebox interfaces and the traffic that goes through the interfaces

• Status of VPN tunnels and management certificates

• Real-time graphs of Firebox bandwidth use or of the connections on specified ports

• Status of any other security services you use on your Firebox

View menu

• See the certificates on the Firebox

• See the license on the Firebox

Fireware Configuration Guide 7

Fireware User Interface

• Open the communication log file

Tools menu

• Open Policy Manager with the configuration of the Firebox

• Open HostWatch and connect to the Firebox

• Monitor the performance aspects of the Firebox

• Synchronize the time of the Firebox with the system time

• Clear the ARP cache of the Firebox

• Clear the alarms on the Firebox

• Configure High Availability options

• Change the status and configuration passphrases

Fireware User Interface

8 WatchGuard System Manager

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