[nsp] HSRP and VLANs

[Sam Stickland]

----- Original Message -----
From: "Marco Matarazzo"
To: "Jason Lixfeld"
Cc: <cisco-nsp at puck.nether.net>
Sent: Tuesday, December 16, 2003 1:53 PM
Subject: Re: [nsp] HSRP and VLANs


> > As I understand it, you need at least 3 IPs to do HSRP for one subnet
> > or VLAN.  One IP for each physical interface on the router and one
> > virtual IP which becomes the host's default gateway.  By the sounds of
> > it, you may need to expand the subnets for each of those 50 VLANs (if
> > you have promised each customer in the vlan 6 or 14 usable IP
> > addresses, depending) for each  .  I don't know if you can do
> > unnumbered HSRP.
>
> Good point Jason! But I wonder how one can deliver a point to point
> connection (I also have a couple of BGP downstreams) with a  /30, and have
> redundancy... there should been something we missed! At least I hope so!
:)
> Someone that can enlighten us?

HRSP is designed for first hop redunancy. For p2p connections you should
simply supply 2 seperate /30s and setup BGP to run over both of them.

Sam