Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!proteon.com!tvm
From: tvm@proteon.com (Tom Miceli)
Newsgroups: comp.sys.proteon
Subject: p4200 configuration question
Message-ID: <8904241741.AA01106@monk.proteon.com>
Date: 24 Apr 89 17:41:46 GMT
References: <8904212059.AA09171@WINDOM.UCAR.EDU>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 18

Subject: Config. Question

We have supported multiple IP addresses per interface since the first
introduction of the p4200 product.  This is done using the "IP CONFIG>
add address" command.  You can also select which ones will have RIP
packets sent out them, whether to send net and/or subnet routes, etc.
Each address even has it's own configuration of broadcast address.
There is enormous flexibility in configuring multiple addresses.

In particular, you would only want to send network RIP routes out the
side of the router on 128.1.[2,3,4,5], since these machines presumably
do not know that they are subnetted.  Presumably this would be sent
from the 128.1.1.x address.  You would also want to enable proxy ARP,
since the hosts out on 128.1.[3,4,5] don't know about the subnetting. 

(In older versions of the software, the first IP address was the
"primary" address.  This changed in Release 7.4 to allow full
configuration, back in the fall of 1987.)