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Operation Manual – IPv6 Routing
H3C S5500-SI Series Ethernet Switches Table of Contents
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Table of Contents
Chapter 1 IPv6 Static Routing Configuration................................................................................. i
1.1 Introduction to IPv6 Static Routing.........................................................................................i
1.1.1 Features and Functionalities of IPv6 Static Routes.....................................................i
1.1.2 Default IPv6 Route.......................................................................................................i
1.2 Configuring IPv6 Static Routes..............................................................................................ii
1.2.1 Configuration prerequisites.........................................................................................ii
1.2.2 Configuring IPv6 Static Routes...................................................................................ii
1.3 Displaying and Maintaining IPv6 Static Routes.....................................................................ii
1.4 IPv6 Static Routing Configuration Example...........................................................................ii
Chapter 2 IPv6-RIPng Configuration........................................................................................... 2-1
2.1 Introduction to RIPng......................................................................................................... 2-1
2.1.1 RIPng Working Mechanism..................................................................................... 2-1
2.1.2 RIPng Packet Format.............................................................................................. 2-2
2.1.3 RIPng Packet Processing Procedure......................................................................2-3
2.1.4 Protocols and Standards.........................................................................................2-4
2.2 Configuring RIPng Basic Functions................................................................................... 2-4
2.2.1 Configuration Prerequisites.....................................................................................2-4
2.2.2 Configuration Procedure......................................................................................... 2-4
2.3 Configuring RIPng Advanced Functions............................................................................2-5
2.3.1 Configuring an Additional Routing Metric................................................................ 2-5
2.3.2 Configuring RIPng Route Summarization...............................................................2-6
2.3.3 Advertising a Default Route ....................................................................................2-6
2.3.4 Configuring a RIPng Route Filtering Policy.............................................................2-6
2.3.5 Configuring a RIPng Priority....................................................................................2-7
2.3.6 Configuring RIPng Route Redistribution................................................................. 2-7
2.4 Optimizing the RIPng Network...........................................................................................2-8
2.4.1 Configuring RIPng Timers.......................................................................................2-8
2.4.2 Configuring the Split Horizon and Poison Reverse.................................................2-9
2.4.3 Configuring Zero Field Check ...............................................................................2-10
2.5 Displaying and Maintaining RIPng................................................................................... 2-10
2.6 RIPng Configuration Example .........................................................................................2-10
Chapter 3 Routing Policy Configuration.....................................................................................3-1
3.1 Introduction to Routing Policy............................................................................................ 3-1
3.1.1 Routing Policy and Policy Routing..........................................................................3-1
3.1.2 Filters.......................................................................................................................3-1
3.1.3 Routing Policy Application....................................................................................... 3-2
3.2 Defining Filtering Lists .......................................................................................................3-2
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3.2.1 Prerequisites ........................................................................................................... 3-2
3.2.2 Defining an IPv6 prefix List .....................................................................................3-3
3.3 Configuring a Routing Policy .............................................................................................3-3
3.3.1 Prerequisites ........................................................................................................... 3-4
3.3.2 Creating a Routing Policy........................................................................................3-4
3.3.3 Defining if-match Clauses for the Routing Policy....................................................3-5
3.3.4 Defining apply Clauses for the Routing Policy........................................................3-5
3.4 Displaying and Maintaining the Routing Policy..................................................................3-6
3.5 Routing Policy Configuration Example .............................................................................. 3-6
3.5.1 Applying Routing Policy When Redistributing IPv6 Routes....................................3-6
3.6 Troubleshooting Routing Policy Configuration ..................................................................3-8
3.6.1 IPv6 Routing Information Filtering Failed................................................................3-8
Operation Manual – IPv6 Routing
H3C S5500-SI Series Ethernet Switches Chapter 1
IPv6 Static Routing Configuration
i
Chapter 1 IPv6 Static Routing Configuration
When configuring IPv6 Static Routing, go to these sections for information you are
interested in:
z Introduction to IPv6 Static Routing
z Configuring IPv6 Static Routes
z Displaying and Maintaining IPv6 Static Routes
z IPv6 Static Routing Configuration Example
Note:
Throughout this chapter, the term router refers to either a router in a general sense or a
Layer 3 switch running routing protocols.
1.1 Introduction to IPv6 Static Routing
Static routes are special routes that are manually configured by network administrators.
These manually configured static routes work well in simple networks. Configuring and
using them properly can improve the performance of networks and can guarantee
enough bandwidth reserved for important applications.
However, static routes also have their downside: network failure or topology changes
could introduce unreachable routes that lead to network disconnection. Such scenarios
require the network administrators to manually configure and modify the static routes.
1.1.1 Features and Functionalities of IPv6 Static Routes
Similar to IPv4 static routes, IPv6 static routes work well in simple IPv6 network
environments.
Their major difference lies in the destination and the next hop addresses. IPv6 static
routes use IPv6 addresses whereas IPv4 static routes use IPv4 addresses.
1.1.2 Default IPv6 Route
An IPv6 static route that has the destination address configured as “::/0” (indicating a
prefix length of 0) is the default IPv6 route. If the destination address of an IPv6 packet
does not match any entries in the routing table, this default route will be used to forward
the packet.
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H3C S5500-SI Series Ethernet Switches Chapter 1
IPv6 Static Routing Configuration
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1.2 Configuring IPv6 Static Routes
In small IPv6 network environments, IPv6 static routes can be used to achieve network
connectivity. In comparison to dynamic routes, it helps to save network bandwidth.
1.2.1 Configuration prerequisites
z Enabling IPv6 packet forwarding
z Ensuring that the neighboring nodes are IPv6 reachable
1.2.2 Configuring IPv6 Static Routes
To do… Use the commands… Remarks
Enter system view
system-view
—
Configure an IPv6
static route
ipv6 route-static ipv6-address
prefix-length [ interface-type
interface-number ] nexthop-address
[ preference preference-value ]
Required
The default
preference of IPv6
static routes is 60.
1.3 Displaying and Maintaining IPv6 Static Routes
To do… Use the command… Remarks
Display IPv6 static
route information
display ipv6 routing-table
protocol static [ inactive |
verbose ]
Available in any view
Remove all IPv6 static
routes
delete ipv6 static-routes all
Available in system
view
Note:
Using the undo ipv6 route-static command can delete a single IPv6 static route, while
using the delete ipv6 static-routes all command deletes all IPv6 static routes
including the default route.
1.4 IPv6 Static Routing Configuration Example
I. Network requirements
With IPv6 static routes configured, all hosts and switches can interact with each other.
Operation Manual – IPv6 Routing
H3C S5500-SI Series Ethernet Switches Chapter 1
IPv6 Static Routing Configuration
iii
II. Network diagram
PC1
1::2/64
SwitchA
SwitchB
SwitchC
Vlan interface 100
1::1/64 Vlan- interface 200
4:: 1/64
Vlan interface 200
4::2/64
Vlan interface 400
2::1/64
Vlan interface 300
5::2/64
Vlan interface 300
5::1/64
Vlan
3::1
PC2
2::2/64
interface 500
/64
PC3
-
-
-
-
-
-
3::2/64
Figure 1-1 Network diagram for static routes
III. Configuration procedure
1) Configure the IPv6 addresses of all VLAN interfaces (Omitted)
2) Configure IPv6 static routes.
# Configure on SwitchA the default IPv6 static route.
<SwitchA> system-view
[SwitchA] ipv6
[SwitchA] ipv6 route-static :: 0 4::2
# Configure two IPv6 static routes on SwitchB.
<SwitchB> system-view
[SwitchB] ipv6
[SwitchB] ipv6 route-static 1:: 64 4::1
[SwitchB] ipv6 route-static 3:: 64 5::1
# Configure on SwitchC the default IPv6 static route.
<SwitchC> system-view
[SwitchC] ipv6
[SwitchC] ipv6 route-static :: 0 5::2
3) Configure the IPv6 addresses of hosts and gateways.
Configure the IPv6 addresses of all the hosts based upon the network diagram,
configure the default gateway of PC1 as 1::1, PC2 as 2::1, and PC3 as 3::1.
4) Display configuration information
# Display the IPv6 routing table of SwitchA.
[SwitchA] display ipv6 routing-table
Routing Table :
Destinations : 7 Routes : 7
Destination: ::/0 Protocol : Static
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H3C S5500-SI Series Ethernet Switches Chapter 1
IPv6 Static Routing Configuration
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NextHop : 4::2 Preference: 60
Interface : Vlan200 Cost : 0
Destination: ::1/128 Protocol : Direct
NextHop : ::1 Preference: 0
Interface : InLoop0 Cost : 0
Destination: 1::/64 Protocol : Direct
NextHop : 1::1 Preference: 0
Interface : Vlan100 Cost : 0
Destination: 1::1/128 Protocol : Direct
NextHop : ::1 Preference: 0
Interface : InLoop0 Cost : 0
Destination: 4::/64 Protocol : Direct
NextHop : 4::1 Preference: 0
Interface : Vlan200 Cost : 0
Destination: 4::1/128 Protocol : Direct
NextHop : ::1 Preference: 0
Interface : InLoop0 Cost : 0
Destination: FE80::/10 Protocol : Direct
NextHop : :: Preference: 0
Interface : NULL0 Cost : 0
# Verify with the ping command.
[SwitchA] ping ipv6 3::1
PING 3::1 : 56 data bytes, press CTRL_C to break
Reply from 3::1
bytes=56 Sequence=1 hop limit=63 time = 5 ms
Reply from 3::1
bytes=56 Sequence=2 hop limit=63 time = 13 ms
Reply from 3::1
bytes=56 Sequence=3 hop limit=63 time = 3 ms
Reply from 3::1
bytes=56 Sequence=4 hop limit=63 time = 3 ms
Reply from 3::1
bytes=56 Sequence=5 hop limit=63 time = 3 ms
--- 3::1 ping statistics ---
5 packet(s) transmitted
Operation Manual – IPv6 Routing
H3C S5500-SI Series Ethernet Switches Chapter 1
IPv6 Static Routing Configuration
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5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 3/5/13 ms
Operation Manual – IPv6 Routing
H3C S5500-SI Series Ethernet Switches Chapter 2
IPv6-RIPng Configuration
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Chapter 2 IPv6-RIPng Configuration
When configuring RIPng, go to these sections for information you are interested in:
z Introduction to RIPng
z Configuring RIPng Basic Functions
z Configuring RIPng Advanced Functions
z Optimizing the RIPng Network
z RIPng Configuration Example
Note:
The term “router” in this document refers to a router in a generic sense or a Layer 3
switch.
2.1 Introduction to RIPng
RIP next generation (RIPng) is an extension of RIP-2 for IPv4. Most RIP concepts are
applicable in RIPng.
RIPng for IPv6 made the following changes to RIP:
z UDP port number: RIPng uses UDP port 521 for sending and receiving routing
information.
z Multicast address: RIPng uses FF02:9 as the link-local multicast address.
z Destination Prefix: 128-bit destination address prefix.
z Next hop: IPv6 address in 128-bit.
z Source address: RIPng uses FE80::/10 as the link-local source address
2.1.1 RIPng Working Mechanism
RIPng is a routing protocol based on the distance vector (D-V) algorithm. RIPng uses
UPD packets to exchange routing information through port 521.
RIPng uses a hop count to measure the distance to a destination. The hop count is
referred to as metric or cost. The hop count from a router to a directly connected
network is 0. The hop count from one router to another router is 1, and so on. When the
hop count is greater than or equal to 16, the destination network or host is unreachable.
By default, the routing update is sent every 30 seconds. If the router receives no routing
update from a neighbor after 180 seconds, the routes learned from the neighbor are
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IPv6-RIPng Configuration
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considered as unreachable. After another 240 seconds, if no routing update is received,
the router will remove these routes from the routing table.
RIPng supports Split Horizon and Poison Reverse to prevent routing loops, and route
redistribution.
Each RIPng router maintains a routing database, including route entries of all
reachable destinations. A route entry contains the following information:
z Destination address: IPv6 address of a host or a network.
z Next hop address: IPv6 address of a neighbor along the path to the destination.
z Egress interface: Outbound interface that forwards IPv6 packets.
z Metric: Cost from the local router to the destination.
z Route time: Time that elapsed since a route entry is last changed. Each time a
route entry is modified, the routing time is set to 0.
z Route tag: Identifies the route, used in routing policy to control routing.
2.1.2 RIPng Packet Format
I. Basic format
A RIPng packet consists of a header and multiple Route Table Entries (RTEs). The
maximum number of RTEs in a packet is determined by the interface MTU value.
Figure 2-1 shows the basic packet format of RIPng.
0715
command must be zeroversion
Route Table Entry N (20 octets)
Route Table Entry 1 (20 octets)
Figure 2-1 RIPng basic packet format
z Command: Type of message. 0x01 indicates Request, 0x02 indicates Response.
z Version: Version of RIPng. It can only be 0x01 currently.
z RTE: Route table entry, 20 bytes for each entry.
II. RTE format
There are two types of RTE in RIPng.
z Next hop RTE: Defines a next hop IPv6 address
z IPv6 prefix RTE: Describes the destination IPv6 address and metric in the RIPng
routing table.
Figure 2-2 shows format of the next hop RTE:
Operation Manual – IPv6 Routing
H3C S5500-SI Series Ethernet Switches Chapter 2
IPv6-RIPng Configuration
2-3
310715
must be zero must be zero 0xFF
IPv6 next hop address (16 octets)
t
31
Figure 2-2 Next hop RTE forma
IPv6 next hop address is the IPv6 address of the next hop.
Figure 2-3 shows the format of the IPv6 prefix RTE.
0715
IPv6 prefix (16 octets)
route tag prefix len metric
t
Figure 2-3 IPv6 prefix RTE forma
z IPv6 prefix: Destination IPv6 address prefix.
z Route tag: Route tag.
z Prefix len: Length of the IPv6 address prefix.
z Metric: Cost of a route.
2.1.3 RIPng Packet Processing Procedure
I. Request packet
When a RIPng router first starts or needs to update some entries in its routing table,
generally a multicast request packet is sent to ask for needed routes from neighbors.
The receiving RIPng router processes RTEs in the request. If there is only one RTE
with the IPv6 prefix and prefix length both being 0, and with a metric value of 16, the
RIPng router will respond with the entire routing table information in response
messages. If there are multiple RTEs in the request message, the RIPng router will
examine each RTE, update its metric, and send the requested routing information to
the requesting router in the response packet.
II. Response packet
The response packet containing the local routing table information is generated as:
z A response to a request
z An update periodically
z A trigged update caused by route change
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IPv6-RIPng Configuration
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After receiving a response, a router checks the validation of the response before adding
the route to its routing table, such as whether the source IPv6 address is the link-local
address, whether the port number is correct. The response packet failed the check will
be discarded.
2.1.4 Protocols and Standards
z RFC2080: RIPng for IPv6
z RFC2081: RIPng Protocol Applicability Statement
z RFC2453: RIP Version 2
2.2 Configuring RIPng Basic Functions
In this section, you are presented with the information to configure the basic RIPng
features.
You need to enable RIPng first before configuring other tasks, but it is not necessary for
RIPng related interface configurations, such as assigning an IPv6 address.
2.2.1 Configuration Prerequisites
Before the configuration, accomplish the following tasks first:
z Enable IPv6 packet forwarding.
z Configure an IP address for each interface, and make sure all nodes are
reachable.
2.2.2 Configuration Procedure
Follow these steps to configure the basic RIPng function:
To do… Use the command… Remarks
Enter system view
system-view
––
Create a RIPng process and
enter RIPng view
ripng [ process-id ]
Required
Not created by default
Return to system view
quit
—
Enter interface view
interface
interface-type
interface-number
––
Enable RIPng on the
interface
ripng process-id
enable
Required
Disabled by default
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IPv6-RIPng Configuration
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Note:
If RIPng is not enabled on an interface, the interface will not send and receive any
RIPng route.
2.3 Configuring RIPng Advanced Functions
This section covers the following topics:
z Configuring an Additional Routing Metric
z Configuring RIPng Route Summarization
z Advertising a Default Route
z Configuring a RIPng Route Filtering Policy
z Configuring a RIPng Priority
z Configuring RIPng Route Redistribution
Before the configuration, accomplish the following tasks first:
z Configure an IPv6 address on each interface, and make sure all nodes are
reachable.
z Configure RIPng basic functions
z Define an IPv6 ACL before using it for route filtering. Refer to ACL configuration for
related information.
z Define an IPv6 address prefix list before using it for route filtering.
2.3.1 Configuring an Additional Routing Metric
An additional routing metric can be added to the metric of an inbound or outbound RIP
route, namely, the inbound and outbound additional metric.
The outbound additional metric is added to the metric of a sent route, the route’s metric
in the routing table is not changed.
The inbound additional metric is added to the metric of a received route before the route
is added into the routing table, so the route’s metric is changed.
Follow these steps to configure an inbound/outbound additional routing metric:
To do… Use the command… Remarks
Enter system view
system-view
––
Enter interface view
interface interface-type
interface-number
––
Enter interface view
interface interface-type
interface-number
––
Specify an inbound
additional metric
ripng metricin value
Optional
0 by default
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IPv6-RIPng Configuration
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To do… Use the command… Remarks
Specify an outbound
additional metric
ripng metricout value
Optional
1 by default
2.3.2 Configuring RIPng Route Summarization
Follow these steps to configure RIPng route summarization
To do… Use the command… Remarks
Enter system view
system-view
––
Enter interface view
interface interface-type interface-number
––
Advertise a
summary IPv6 prefix
ripng summary-address ipv6-address
prefix-length
Required
2.3.3 Advertising a Default Route
Follow these steps to advertise a default route:
To do… Use the command… Remarks
Enter system view
system-view
––
Enter interface view
interface interface-type
interface-number
––
Advertise a default
route
ripng default-route { only |
originate } [ cost value ]
Required
Not advertised by default
Note:
With this feature enabled, a default route is advertised via the specified interface
regardless of whether the default route is available in the local IPv6 routing table.
2.3.4 Configuring a RIPng Route Filtering Policy
You can reference a configured IPv6 ACL or prefix list to filter received/advertised
routing information as needed. For filtering outbound routes, you can also specify a
routing protocol from which to filter routing information redistributed.
Follow these steps to configure a RIPng route filtering policy:
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IPv6-RIPng Configuration
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To do… Use the command… Remarks
Enter system view
system-view
––
Enter RIPng view ripng [ process-id ] ––
Configure a filter
policy to filter
received routes
filter-policy { acl6-number |
ipv6-prefix
ipv6-prefix-name } import
Required
By default, RIPng does not
filter received routing
information.
Configure a filter
policy to filter
advertised routes
filter-policy { acl6-number |
ipv6-prefix
ipv6-prefix-name } export
[ protocol [ process-id ] ]
Required
By default, RIPng does not
filter routing information to
be advertised.
2.3.5 Configuring a RIPng Priority
Any routing protocol has its own protocol priority used for optimal route selection. You
can set a priority for RIPng manually. The smaller the value is, the higher the priority is.
Follow these steps to configure a RIPng priority:
To do… Use the command… Remarks
Enter system view
system-view
—
Enter RIPng view ripng [ process-id ] —
Configure a RIPng
priority
preference [ route-policy
route-policy-name ] value
Optional
By default, the RIPng
priority is 100.
2.3.6 Configuring RIPng Route Redistribution
Follow these steps to configure RIPng route redistribution:
To do… Use the command… Remarks
Enter system view
system-view
––
Enter RIPng view ripng [ process-id ] ––
Configure a default
routing metric for
redistributed routes
default cost value
Optional
By default, the default metric
of redistribute routes is 0.
Redistribute routes
from another routing
protocol
import-route protocol
[ cost cost-value |
route-policy
route-policy-name ] *
Required
By default, RIPng does not
redistribute any other
protocol route.
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IPv6-RIPng Configuration
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2.4 Optimizing the RIPng Network
This section describes how to adjust and optimize the performance of the RIPng
network as well as applications under special network environments. Before adjusting
and optimizing the RIPng network, complete the following tasks:
z Configure a network layer address for each interface
z Configure the basic RIPng functions
This section covers the following topics:
z Configuring RIPng Timers
z Configuring the Split Horizon and Poison Reverse
z Configuring Zero Field Check
2.4.1 Configuring RIPng Timers
You can adjust RIPng timers to optimize the performance of the RIPng network.
Follow these steps to configure RIPng timers:
To do… Use the command… Remarks
Enter system view
system-view
—
Enter RIPng view ripng [ process-id ]
—
Configure RIPng
timers
timers
{ garbage-collect
garbage-collect-value
| suppress
suppress-value |
timeout
timeout-value |
update
update-value } *
Optional.
The RIPng timers have the following
defaults:
z 30 seconds for the update timer
z 180 seconds for the timeout timer
z 120 seconds for the suppress timer
z 240 seconds for the
garbage-collect timer
Note:
When adjusting RIPng timers, you should consider the network performance and
perform unified configurations on routers running RIPng to avoid unnecessary network
traffic increase or route oscillation.
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IPv6-RIPng Configuration
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2.4.2 Configuring the Split Horizon and Poison Reverse
Note:
If both the split horizon and poison reverse are configured, only the poison reverse
function takes effect.
I. Configure the split horizon
The split horizon function disables a route learned from an interface from being
advertised via the interface to prevent routing loops between neighbors.
Follow these steps to configure the split horizon:
To do… Use the command… Remarks
Enter system view
system-view
––
Enter interface view
interface interface-type
interface-number
––
Enable the split horizon
function
ripng split-horizon
Optional
Enabled by default
Note:
Generally, you are recommended to enable the split horizon to prevent routing loops.
II. Configuring the poison reverse function
The poison reverse function enables a route learned from an interface to be advertised
via the interface. However, the metric of the route is set to 16. That is to say, the route is
unreachable.
Follow these steps to configure poison reverse:
To do… Use the command… Remarks
Enter system view
system-view
––
Enter interface view
interface interface-type
interface-number
––
Enable the poison
reverse function
ripng poison-reverse
Required
Disabled by default
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IPv6-RIPng Configuration
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2.4.3 Configuring Zero Field Check
Some fields in RIPng packet headers must be zero. These fields are called zero fields.
You can enable the zero field check on RIPng packets. If any such field contains a
non-zero value, the entire RIPng packet will be discarded. If you are sure that all
packets are trusty, you can disable the zero field check to save the CPU processing
time.
Follow these steps to configure RIPng zero field check:
To do… Use the command… Remarks
Enter system view
system-view
––
Enter RIPng view ripng [ process-id ] ––
Enable the zero field
check
checkzero
Optional
Enabled by default
2.5 Displaying and Maintaining RIPng
To do… Use the command… Remarks
Display configuration information
of a RIPng process
display ripng [ process-id ]
Available in any
view
Display routes in the RIPng
database
display ripng process-id
database
Available in any
view
Display the routing information of
a specified RIPng process
display ripng process-id
route
Available in any
view
Display information of a RIPng
interface
display ripng process-id
interface [ interface-type
interface-number ]
Available in any
view
2.6 RIPng Configuration Example
I. Network requirements
As shown in Figure 2-4, all switches run RIPng. Configure Switch B to filter the route
(3::/64) learnt from Switch C, which means the route will not be added to the routing
table of Switch B, and Switch B will not forward it to Switch A..
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H3C S5500-SI Series Ethernet Switches Chapter 2
IPv6-RIPng Configuration
2-11
tchC
II. Network diagram
Sw itc hA S witchB
Swi
RI Pn g
1::2/64
1:: 1/64
3::1/64
3::2/64
2::1/64
Vlan-interf ace600
4::1/64
5::1/ 64
Vlan-int erf ace100
Vlan-i nterf ac e100 Vl an-interf ace200
Vlan-interf ace200
Vlan-i nterf ace400
Sw itc hA S witchB
Swi
Vlan-interface500
tchC
RI Pn g
1::2/64
1:: 1/64
3::1/64
3::2/64
2::1/64
Vlan-interf ace600
4::1/64
5::1/ 64
Vlan-int erf ace100
Vlan-i nterf ac e100 Vl an-interf ace200
Vlan-interf ace200
Vlan-i nterf ace400
Vlan-interface500
n
Figure 2-4 Network diagram for RIPng configuratio
III. Configuration procedure
1) Configure the IPv6 address for each interface (omitted)
2) Configure basic RIPng functions
# Configure Switch A.
<SwitchA> system-view
[SwitchA] ipv6
[SwitchA] ripng 1
[SwitchA-ripng-1] quit
[SwitchA] interface vlan-interface 100
[SwitchA-Vlan-interface100] ripng 1 enable
[SwitchA-Vlan-interface100] quit
[SwitchA] interface vlan-interface 400
[SwitchA-Vlan-interface400] ripng 1 enable
[SwitchA-Vlan-interface400] quit
# Configure Switch B.
<SwitchB> system-view
[SwitchB] ipv6
[SwitchB] ripng 1
[SwitchB-ripng-1] quit
[SwitchB] interface vlan-interface 200
[SwitchB-Vlan-interface200] ripng 1 enable
[SwitchB-Vlan-interface200] quit
[SwitchB] interface vlan-interface 100
[SwitchB-Vlan-interface100] ripng 1 enable
[SwitchB-Vlan-interface100] quit
# Configure Switch C.
<SwitchB> system-view
[SwitchC] ipv6
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[SwitchC] ripng 1
[SwitchC-ripng-1] quit
[SwitchC] interface vlan-interface 200
[SwitchC-Vlan-interface200] ripng 1 enable
[SwitchC-Vlan-interface200] quit
[SwitchC] interface vlan-interface 500
[SwitchC-Vlan-interface500] ripng 1 enable
[SwitchC-Vlan-interface500] quit
[SwitchC] interface Vlan-interface 600
[SwitchC-Vlan-interface600] ripng 1 enable
[SwitchC-Vlan-interface600] quit
# Display the routing table of Switch B.
[SwitchB] display ripng 1 route
Route Flags: A - Aging, S - Suppressed, G - Garbage-collect
----------------------------------------------------------------
Peer FE80::20F:E2FF:FE23:82F5 on Vlan-interface100
Dest 1::/64,
via FE80::20F:E2FF:FE23:82F5, cost 1, tag 0, A, 6 Sec
Dest 2::/64,
via FE80::20F:E2FF:FE23:82F5, cost 1, tag 0, A, 6 Sec
Peer FE80::20F:E2FF:FE00:100 on Vlan-interface200
Dest 3::/64,
via FE80::20F:E2FF:FE00:100, cost 1, tag 0, A, 11 Sec
Dest 4::/64,
via FE80::20F:E2FF:FE00:100, cost 1, tag 0, A, 11 Sec
Dest 5::/64,
via FE80::20F:E2FF:FE00:100, cost 1, tag 0, A, 11 Sec
# Display the routing table of Switch A.
[SwitchA] display ripng 1 route
Route Flags: A - Aging, S - Suppressed, G - Garbage-collect
----------------------------------------------------------------
Peer FE80::200:2FF:FE64:8904 on Vlan-interface100
Dest 1::/64,
via FE80::200:2FF:FE64:8904, cost 1, tag 0, A, 31 Sec
Dest 4::/64,
via FE80::200:2FF:FE64:8904, cost 2, tag 0, A, 31 Sec
Dest 5::/64,
via FE80::200:2FF:FE64:8904, cost 2, tag 0, A, 31 Sec
Operation Manual – IPv6 Routing
H3C S5500-SI Series Ethernet Switches Chapter 2
IPv6-RIPng Configuration
2-13
Dest 3::/64,
via FE80::200:2FF:FE64:8904, cost 1, tag 0, A, 31 Sec
3) Configure Switch B to filter received routes
[SwitchB] acl ipv6 number 2000
[SwitchB-acl6-basic-2000] rule deny source 3::/64
[SwitchB-acl6-basic-2000] rule permit
[SwitchB-acl6-basic-2000] quit
[SwitchB] ripng 1
[SwitchB-ripng-1] filter-policy 2000 import
[SwitchB-ripng-1] filter-policy 2000 export
[SwitchB-ripng-1] quit
# Display routing tables of Switch B and Switch A.
[SwitchB] display ripng 1 route
Route Flags: A - Aging, S - Suppressed, G - Garbage-collect
----------------------------------------------------------------
Peer FE80::20F:E2FF:FE23:82F5 on Vlan-interface100
Dest 1::/64,
via FE80::20F:E2FF:FE23:82F5, cost 1, tag 0, A, 2 Sec
Dest 2::/64,
via FE80::20F:E2FF:FE23:82F5, cost 1, tag 0, A, 2 Sec
Peer FE80::20F:E2FF:FE00:100 on Vlan-interface200
Dest 4::/64,
via FE80::20F:E2FF:FE00:100, cost 1, tag 0, A, 5 Sec
Dest 5::/64,
via FE80::20F:E2FF:FE00:100, cost 1, tag 0, A, 5 Sec
[SwitchA] display ripng 1 route
Route Flags: A - Aging, S - Suppressed, G - Garbage-collect
----------------------------------------------------------------
Peer FE80::20F:E2FF:FE00:1235 on Vlan-interface100
Dest 1::/64,
via FE80::20F:E2FF:FE00:1235, cost 1, tag 0, A, 2 Sec
Dest 4::/64,
via FE80::20F:E2FF:FE00:1235, cost 2, tag 0, A, 2 Sec
Dest 5::/64,
via FE80::20F:E2FF:FE00:1235, cost 2, tag 0, A, 2 Sec
/