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New Member

How do I find 'IP-helpers' with SNMP ?

I need to check IP-helper statements with SNMP, and by using (locIPHelper) 1.3.6.1.4.1.9.2.4.1.1.3 it only lists the first IP-helper under each interface (IP address).

Ex.:

1.3.6.1.4.1.9.2.4.1.1.3.xx.xx.xx.xx => yy.yy.yy.yy

xx.xx.xx.xx interface IP address

yy.yy.yy.yy first ip-helper address

Can anyone tell me how to find the additional IP-helpers (under same interface)?

Reg's Flemming Furholm

3 REPLIES
Cisco Employee

Re: How do I find 'IP-helpers' with SNMP ?

Support for this was never implemented, but was requested a very long time ago in CSCdi01661. Currently, the only way to retrieve all helper addresses is via the CLI, or to use the CISCO-CONFIG-COPY-MIB to export the config via, for example, TFTP, then view the helper addresses that way.

While it would be much more complicated than a simple poll, you could design a script that wraps the config copy, parses the config for ip helper-address for a given interface, then spits out all the values.

New Member

Re: How do I find 'IP-helpers' with SNMP ?

Thank's

Now I know that SNMP isn't the way.

I have to check app. 1000 devices and due to tacacs timer (30 sec's) CLI is out of the question. The CISCO-CONFIG-COPY-MIB and TFTP

could be used, but most of the devices are managed and maintained by a ISP, who (by now) don't allow us to TFTP via SNMP.

But thank's for the answer.

Reg's. Flemming Furholm

Cisco Employee

Re: How do I find 'IP-helpers' with SNMP ?

You could also use RCP with the CONFIG-COPY-MIB if that is allowed.

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