RADIUS Authentication........................................................................................................................................... 192
Conguration Task List for RADIUS....................................................................................................................... 193
TACACS+........................................................................................................................................................................ 196
Conguration Task List for TACACS+....................................................................................................................196
TACACS+ Remote Authentication..........................................................................................................................197
Enabling SCP and SSH.................................................................................................................................................. 198
Using SCP with SSH to Copy a Software Image................................................................................................. 199
Secure Shell Authentication................................................................................................................................... 200
Troubleshooting SSH...............................................................................................................................................202
Telnet...............................................................................................................................................................................203
VTY Line and Access-Class Conguration................................................................................................................. 203
VTY Line Local Authentication and Authorization............................................................................................... 203
VTY Line Remote Authentication and Authorization...........................................................................................204
VTY MAC-SA Filter Support.................................................................................................................................. 204
18 Simple Network Management Protocol (SNMP)...................................................................................... 206
Supported Modes..........................................................................................................................................................206
Implementation Information..........................................................................................................................................207
Conguring the Simple Network Management Protocol..........................................................................................207
Important Points to Remember..............................................................................................................................207
Setting up SNMP.....................................................................................................................................................207
Creating a Community.............................................................................................................................................207
Setting Up User-Based Security (SNMPv3)..............................................................................................................208
Subscribing to Managed Object Value Updates using SNMP................................................................................. 209
Enabling a Subset of SNMP Traps............................................................................................................................... 210
Reading Managed Object Values.................................................................................................................................. 211
Displaying the Ports in a VLAN using SNMP.............................................................................................................. 212
Fetching Dynamic MAC Entries using SNMP.............................................................................................................213
Deriving Interface Indices.............................................................................................................................................. 215
MIB Support to Display Egress Queue Statistics....................................................................................................... 215
Monitor Port-Channels.................................................................................................................................................. 216
Entity MIBS..................................................................................................................................................................... 217
Example of Sample Entity MIBS outputs...............................................................................................................217
SNMP Traps for Link Status......................................................................................................................................... 218
Standard VLAN MIB.......................................................................................................................................................219
Enhancements..........................................................................................................................................................219
Fetching the Switchport Conguration and the Logical Interface Conguration ........................................... 219
MIB Support to Display the Available Memory Size on Flash...................................................................................220
Viewing the Available Flash Memory Size............................................................................................................ 220
MIB Support to Display the Software Core Files Generated by the System......................................................... 220
Viewing the Software Core Files Generated by the System...............................................................................221
MIB Support to Display the Available Partitions on Flash.........................................................................................222
Viewing the Available Partitions on Flash............................................................................................................. 222
MIB Support to Display Egress Queue Statistics.......................................................................................................223
MIB Support to Display Egress Queue Statistics.......................................................................................................223
Viewing the ECMP Group Count Information......................................................................................................223
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