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Community Member

VRRP/HSRP + STATIC NAT

I would like to know how to configure 2 router with VRRP or HSRP + static nat and avoid ip duplication.

I need to have failover configured on two routers and some static nat 1:1 to reach some hosts on a overlapping network.

Doing so, i discovered "ip duplication" error message on syslog.

Can someone help me?

Thx.

3 REPLIES
Silver

Re: VRRP/HSRP + STATIC NAT

The “ip duplicate” issue may be due to Momentary STP loops ,EtherChannel configuration issues Duplicated frames.

Silver

Re: VRRP/HSRP + STATIC NAT

You need to configure Stateful NAT to have NATing enabled on two routers running HSRP.

Below you can find the SNAT link:

http://www.cisco.com/en/US/docs/ios/12_4/12_4_mainline/snatsca.html

Hope this helps,

Appreciate your rating,

Regards,

Community Member

Re: VRRP/HSRP + STATIC NAT

The HSRP config in this document is wrong ... it should be something like:

standby delay minimum 30 reload 60

standby 1 ip 10.1.1.1

standby 1 name SNATSRSP

standby 1 preempt delay minimum 60 reload 60 sync 60

Ian

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