Strange TCP/IP behaviour with additional network addresses

From: Claude Scarpelli <claude_at_genoscope.cns.fr>
Date: Fri, 10 Nov 2000 18:39:57 +0100

Dear Tru64 Managers,

We are running Tru64 4.0F. Our system is configured with an
additionnal IP address (ifconfig alias ....) on its ethernet
interface. The additionnal address is part of a separate network:

ifconfig alt0 195.83.222.129 netmask 255.255.255.0
ifconfig alt0 alias 192.168.243.129

When host A (IP addr 192.168.243.1) sends an UDP paquet to
192.168.243.129, the response's from address is 195.83.222.129.

I expect to receive a reply from 192.168.243.129. This is not the
case, and break the protocol we use (XDMCP).

A Solaris host sends a reply with a from address from the correct
network.

Is there a way to configure the TCP/IP module for a "Solaris like"
behaviour ?



-- 
------------------------------------------------------------------------------
Claude Scarpelli                            | Defenestrate: to exit a window
Centre National de Séquençage - GENOSCOPE   | onscreen. (Time International
2, rue Gaston Crémieux, F-91000 EVRY FRANCE | Vol 146, No. 20, Nov 13, 1995)
Received on Fri Nov 10 2000 - 17:41:28 NZDT

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