Controller SNMP management

gururajan — Sun, 04 Jul 2021 07:12:45 GMT

We faced one recent issue with WLC configuration behavior and explaining our observation and workaround we did. If there is an alternate better approach, please suggest.

Requirement

Requirement is to manage the WLC (5508 with 7.4 code) using two SNMP managers in different locations. Also these two Servers should use the same community string to manage WLC.

Observation

We were able to configure the SNMP community string for one server IP (to allow access) through GUI
While trying to add another Server – IP with same community string – it didn’t allow
As per the configuration guide, Controller can use only one IP address range to manage SNMP community.
So we cannot configure the same community string to allow only two different server IP addresses

Configuration reference>

http://www.cisco.com/en/US/docs/wireless/controller/7.4/configuration/guides/consolidated/b_cg74_CONSOLIDATED_chapter_0111.html

Solution

We currently configured the major subnet ( 10.x / 8 - two match both server addresses) and it works fine
Also when we tried 0.0.0.0 / 0.0.0.0 , it didn’t work (SNMP was failing)

But this creates a security issue wherein anybody can poll the WLC. Please suggest if something else can be done.

Regards,

Guru

Controller SNMP management

Scott Fella — Tue, 11 Jun 2013 12:37:32 GMT

This is not paossible. You would need to have two different community strings in order to not get an error.

Thanks,

Scott

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Controller SNMP management

Controller SNMP management