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Webcast-Catalyst9k
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SNMP polling to loopback intf,the router answers with another source ip add

When Network Manager does SNMP polling to a Loopback ip address, the router doesn´t answer it with source ip address from loopback. In this way, when the traffic passes through Firewall Stateful, it is necessary to implement rules when the packet returns.

There is the IOS command "trap source <interface>", but I don´t know if there is some kind of this command to snmp polling.

Does someone know how we can solve this problem ?

2 REPLIES
Blue

Re: SNMP polling to loopback intf,the router answers with anothe

Have a look at CSCeb79675 via CCO Bug Toolkit.

There is no such command for polling like the one for trap source.

New Member

Re: SNMP polling to loopback intf,the router answers with anothe

Use the command for Cisco Routers:

snmp-server trap-source Loopback0

Verify also the configuration of DNS (Domain Name System) if exist association loopback and Hostname.It's can be your problem.

Mario Evangelista

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