I didn't mean to scare anyone with the bizarre addressing. Maybe I went a little overboard while trying to create an extreme situation.
I have not done HSRP in some time and I got confused by likening HSRP peers to IPSec or ISAKMP peers (where peer IP addresses can be specified). I had forgotten about the virtual MAC and ARP. =) --------- Here's what I have: - 2 sites in the same metro area- A and Z - Both sites have similar sized links to the same provider. Here's the problem I am trying to solve: 1. Need fail-over, if not load-sharing (most inbound traffic is headed to A and it has enough capacity on it's own, so load-sharing isn't critical). 2. Both sites to be connected by high speed metro fiber. I am trying to decide whether to route or bridge this link. I was told that I could use HSRP on the provider routers for fail-over if I bridged and kept the HSRP addresses in the same subnet. ---------- I know this sounds like a job for BGP, but I wanted to explore all options. Thanks, Sam At 09:56 PM 9/10/2002 +0000, you wrote: >enabled wrote: > > > > Is there a rule stating that addresses in a HSRP group need to > > be in the > > same subnet? > > > > For example can I have 2 devices with the following addresses: > > RouterA: 10.10.10.1 > > RouterB: 172.16.10.1 > > HSRP address: 192.168.10.1 > >What problem are you trying to solve? Haven't heard that one in a while!? ;-) > >Why would 10.10.10.1 and 172.16.10.1 be offering redundant default gateway >services to the same hosts? (Recall that HSRP provides redundancy for the >end host-to-default gateway link.) An end host's default gateway must be on >the same LAN (broadcast domain, IP subnet) as the end host. The end host >ARPs to find the MAC address to send off-net packets to. The ARP broadcast >contains the IP address of the default gateway that the host is searching. >With HSRP, the active router responds with the "phantom" MAC address. > >Priscilla > > > > > Thanks, > > > > Sam Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=53064&t=52991 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
