Reference Guide

14 Security for M I/O Aggregator......................................................................... 161
Understanding Banner Settings........................................................................................................ 161
Accessing the I/O Aggregator Using the CMC Console Only.........................................................161
AAA Authentication........................................................................................................................... 162
Configuration Task List for AAA Authentication.........................................................................162
RADIUS.............................................................................................................................................. 164
RADIUS Authentication............................................................................................................... 165
Configuration Task List for RADIUS............................................................................................165
TACACS+...........................................................................................................................................168
Configuration Task List for TACACS+........................................................................................ 168
TACACS+ Remote Authentication..............................................................................................172
Enabling SCP and SSH.......................................................................................................................173
Using SCP with SSH to Copy a Software Image.........................................................................174
Secure Shell Authentication........................................................................................................ 175
Troubleshooting SSH...................................................................................................................178
Telnet................................................................................................................................................. 178
VTY Line and Access-Class Configuration.......................................................................................179
VTY Line Local Authentication and Authorization..................................................................... 179
VTY Line Remote Authentication and Authorization.................................................................180
VTY MAC-SA Filter Support.........................................................................................................180
15 Simple Network Management Protocol (SNMP)........................................ 183
Implementation Information............................................................................................................ 183
Configuring the Simple Network Management Protocol............................................................... 183
Important Points to Remember..................................................................................................183
Setting up SNMP..........................................................................................................................184
Creating a Community................................................................................................................184
Reading Managed Object Values..................................................................................................... 184
Displaying the Ports in a VLAN using SNMP.....................................................................................185
Fetching Dynamic MAC Entries using SNMP................................................................................... 187
Deriving Interface Indices.................................................................................................................188
Monitor Port-Channels.....................................................................................................................189
Entity MIBS........................................................................................................................................ 190
Example of Sample Entity MIBS outputs.................................................................................... 190
Standard VLAN MIB........................................................................................................................... 192
Enhancements.............................................................................................................................192
Fetching the Switchport Configuration and the Logical Interface Configuration ...................193
SNMP Traps for Link Status...............................................................................................................194
16 Broadcast Storm Control..................................................................................195
Disabling Broadcast Storm Control..................................................................................................195