12-26-2012 08:36 PM - edited 03-01-2019 05:38 PM
forgive me if the question has already been answered,i tried searching but coudnt get a definitive answer.
the query is does 3560 with lattest ios, support hsrp for ipv4 and ipv6 simultaneously on same SVI { AFAIK it doesnt }
in case it doesnt what could be the best practice that provides high availability
we are planning to run dual stack on our network
we have 4 3560 switches and we are using hsrp for ipv4
1.C1,C2 provide hsrp gateway to D1 D2
2.D1,D2 provide hsrp gateway to C1,C2
3.D1,D2 provide hsrp gateway to hosts
------------ ------------
| | | |
| C1 |----------| C2 |
| 3650 | | 3650 |
------------ ------------
| \ hsrp / |
| \ / |
| \ / |
| \ / |
| \ / |
| \ / |
| \ |
| / \ |
| / \ |
| / \ |
| / \ |
| / \ |
| / hsrp \ |
------------ ------------
| | | |
| D1 | | D2 |
| 3650 | | 3650 |
------------ ------------
| hsrp |
|------------------------|
| | | |
[ ] [ ] [ ] [ ]
hosts
we would have prefered if we could implement the same in ipv6
but incase we cant run hsrp for ipv4 and ipv6 simultaneously on same SVI
what will be the best practice out of following scenarios to run ipv6
we wont be touching the existing ipv4 network.
1 igp between C1,C2,D1,D2 block and using NUD to provide first hop redundancy at host level
{number of routes are less than 100}
2 static routing between C1,C2,D1,D2 block and using NUD to provide first hop redundancy at host level
in this case is it possible to use ip sla tracking
3 any other approach that i might have missed
regards,
12-26-2012 11:16 PM
Hi Vikrant,
It should work with latest IOS. What IOS are you using?
Just some basic questions-
Have you enabled IPv6 stack on the switch (sdm prefer dual-ipv4-and-ipv6)?
Have you enabled IPv6 routing on the switch (ipv6 unicast-routing) ?
Also you may wanna configure HSRP version (2) under the interface.
Please refer to the link below for your reference:-
https://supportforums.cisco.com/videos/2829
Regards,
Deepak Ambotkar
12-27-2012 02:08 AM
thanks for the reply
IOS c3560 Kadvancedipservices K9-M 12.2(46)SE
ipv6 hsrp is working in standalone mode
the problem is when hsrp is configured for ipv4 and ipv6 simultaneously on same interface vlan {with different group no}only one of those work.
01-04-2013 08:43 PM
Hi Vikrant,
Looks like its not supported even in the latest version (15.0(2)) - see here:
From the link:
If you configure HSRP for IPv4 and HSRP for IPv6 at the same time the switch will throw the following error:
%FHRP group not consistent with already configured groups on the switch stack - virtual MAC reservation failed
Work around: Configure either HSRP for IPv4 or HSRP for IPv6 on the switch.
I'm not sure if this is a hardware or software limitation. If I find out I'll post it here.
--Jim
02-05-2013 02:59 PM
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide