[c-nsp] Swap hsrp with vrrp in mixed physical/vmware environment?

[Nick Hilliard]

On 21/03/2013 18:14, David Hubbard wrote:
> So this should be fun; I need to swich from HSRP to
> VRRP to facilitate bringing in a second vendor's
> hardware to interoperate.  We run ipv4 and
> ipv6 (static assignments) and the VLANs are a mix
> of physical servers along with vmware guests on
> Cisco UCS with the fabric interconnects in end-host
> mode.  Physical and vmware guest OS's are mostly
> linux with a very small number of Windows.

It would be really nice if cisco supported "ping a.b.c.d source a.b.c.X"
where a.b.c.X was the virtual IP - it would solve a couple of problems
including this one.  Unfortunately, they don't support it:

> % Invalid source address- IP address not on any of our up interfaces

sigh.

You could hack around this by spoofing ping echo requests using the VIP as
source address from another machine on the same vlan, although if you did
this, I'd recommend disabling mac learning on that port because otherwise
you will confuse the switch.

Otherwise, it's timeout territory.  Do this during a maintenance window and
plan for a little downtime.

Nick