Switch-Router: HOWTO: Configure Set Community String On Router

When someone requests for write access to device's community string, give out devices like Enterprise (172.24.250.100) or Columbia (172.24.150.100). NEVER give out devices like Challenger (172.24.0.4), Atlantis (172.24.0.1), Endeavour (172.24.0.3) and Discovery (172.24.0.2).

Note: The syntax is different on the Cisco 5500's than all other Cisco devices because it runs CatOS, not IOS.

Disclaimer:
The information below is the result of my researches in the Internet and of my experiences. It is solely used for my purpose and may not be suitable for others.

Setting write community string (Columbia is used for this example): 1. Telnet to Columbia (telnet 172.24.150.100) 2. Log onto the device with the passwd (gouni...) Following prompt should be displayed: columbia> 3. Get in enable mode by running following command: enable [enable: activate privileged mode. In privileged mode, additional commands are available, and certain commands display additional information.] Then following prompt should be displayed: columbia> (enable) 4. Type following command to enable Set (write) Community String set snmp community read-write 5. Verify if this is set by running following command: show config

[show config: to display the current system configuration]

NOTE: is the value for set community string.

Resetting write community string: 1. Telnet to Columbia (telnet 172.24.150.100) 2. Log onto the device with the passwd (gouni...) Following prompt should be displayed: columbia> 3. Get in enable mode by running following command: en Then following prompt should be displayed: columbia> (enable) 4. Type following command to enable Set (write) Community String set no snmp community read-write 5. Verify if this is set by running following command: sh conf

That's all!
-gibb