Newsgroups: comp.dcom.sys.cisco
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!caen!news.cs.indiana.edu!cica!ogre!ssw
From: ssw@ogre.cica.indiana.edu (Steve Wallace)
Subject: Re: (none)
Message-ID: <1991Apr15.020702.8890@cica.indiana.edu>
Sender: news@cica.indiana.edu (News System)
Nntp-Posting-Host: ogre.cica.indiana.edu
Organization: Indiana University
References: <34180@boulder.Colorado.EDU>
Date: Mon, 15 Apr 91 02:07:02 GMT

In <34180@boulder.Colorado.EDU> rene@geveke.nl (Rene van der Hauw) writes:

>subject: setting a default gateway and having no backup!!!

>Dear people.

>First I like to thank everybody who responded to my mail about
>the subnet problem. 

>Now I am having a problem concerning backup facilities. When 
>installing a host on a network, the default gateway has to be
>set. 

>I have got the following stituation:

>                          Host
>                           |
>         --------------------------------------
>               |                       |
>             router1                 router2
>               |                       |
>         --------------------------------------
>                           |
>                        Server

>When I am installing on the host the IP address of the router1, I
>can make a connection to the server. But what is going to happen
>when this router1 is going down? ICMP is not responsible for the
>solution, because only when there is a better router for a special
>network ICMP will send a redirect. The only way to solve this is  
>implementing RIP (routed or gated). I can do this on a unix machine,
>but I don't know a DOS machine with this software.

If the network is a subneted class B, you could configure the
host as a simple class B (i.e. no subneting) and let the ciscos
respond via proxy ARP.  Ether cisco could/would respond and if a
connection started to time out, hopefully the host would attempt
a re-ARP.

--
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