Re: First-hop redundancy protocols

From: Alexei Monastyrnyi (alexeim@orcsoftware.com)
Date: Mon Oct 09 2006 - 14:03:52 ART


HSRP v3 isn't that bad to discount it :-)

IRDP support you can google,
====
IRDP (router discovery) support has been added to Windows NT 4.0. IRDP
support has also added to Windows 95 and 98 (see the "More Information"
section of this article).
==== MS knowledge base Sept 2005

Most Unix platforms support IRDP
http://www.cctec.com/maillists/nanog/historical/9811/msg00355.html

HTH
A.

on 10/9/2006 1:44 AM Alex De Gruiter (AU) wrote:
> Hello,
>
> I have 2 questions relating to first-hop redundancy protocols.
>
> 1. Lets assume that you have 2 x routers - R1 and R2. These routers are
> both connected to the same Ethernet LAN segment; devices on this network
> should use R1 as the default gateway, and R2 should take over in the
> event of failure, however hosts on the segment should only have 1
> gateway configured. If there is nothing in the question to indicate
> secondary addressing, is using VRRP the most appropriate solution?
>
> 2. IRDP: what platforms can support this protocol (Unix, Windows?)?
> Would the following be a minimum configuration (assume, again, that R1
> is preferred):
>
> R1
>
> interface ethernet0
> ip irdp
> ip irdp preference 200
>
> R2
>
> interface ethernet0
> ip irdp
>
> Would I need anything else? I'd be interested in testing IRDP (I know,
> it's a legacy protocol, but I'm a glutton for punishment).
>
> Alex
>
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