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Forum Discussion

Dengfeng_54944's avatar
Dengfeng_54944
Icon for Nimbostratus rankNimbostratus
Feb 11, 2013

what will happend with HSRP failover with auto_lasthop but without lasthop pool setup

We are running 10.2.x with auto_lasthop set but we did not have lasthop pool set and used, what will happend when the external HSRP routers failsover: will it only affect existing sessions and new co...
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Hamish's avatar
Hamish
Icon for Cirrocumulus rankCirrocumulus
Feb 11, 2013
If the MAC address doesn't fail over, existing connections fail (Assuming the router with that MAC died) and new connections get the new nodes MAC address.

 

 

if the router DIDN'T fail (i.e. An admin changed HSRP priorities etc), then nothing should be affected (Because the router can still route). YMMV, I've seen some confgis where only the HSRP active router can reach the destination (e.g. someone relying on static routes and the failover was because of an untracked link/interface failure).

 

 

H