09-15-2008 09:02 AM - edited 03-06-2019 01:23 AM
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.
09-19-2008 01:24 PM
The âip duplicateâ issue may be due to Momentary STP loops ,EtherChannel configuration issues Duplicated frames.
09-19-2008 01:44 PM
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,
09-25-2008 11:40 AM
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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