SUMMARY: Dual Homed server configuration question

From: Litwin, Gary (
Date: Mon Apr 24 2000 - 06:52:50 CDT

Managers -

I received over a dozen replies! Thanks so much for taking the time to
respond to my question!

The nearly unanimous solution appears to have been to:

1) touch /etc/notrouter (This turns off IP forwarding at boot time), and

2) use both network router IP addresses in /etc/defaultrouter (This creates
a default entry for BOTH network routers in the routing table! )

Several people pointed me towards the comments in /etc/inid.d/inetinit,
which CLEARLY point out that it is OK to have more than one entry in

Thanks again for all the good information!

Gary Litwin
UNIX Systems Administrator
FlightSafety Boeing Training Intl.
MS: 20-79
(206) 662-8346

-----Original Message-----
From: Litwin, Gary []
Sent: Thursday, April 20, 2000 9:17 AM
To: ''
Subject: Dual Homed server configuration question

Hello, All -

I have an E450 running Solaris 2.6 that I am trying to dual home on two
isolated networks.

I do NOT want any routing between the two networks, but I want users on both
networks to be able to access anything on the E450.

This is an interim configuration until the system switches entirely over
from the original network to the new one.

I seem to be missing something about how to configure the routing to allow
the users on both networks to telnet, ping, etc from the E450 to systems on
their own networks.

I am finding, of course, that both networks want to use the router defined
in /etc/defaultrouter, and this only provides access to one of the

I believe that I have to stop using /etc/defaultrouter and ifconfig a
gateway for each network interface, but I can't seem to find a correct
combination that seems to work.

I have searched the sun-manager archives, but didn't quite run across the
same configuration I am trying to establish.

I'm sure I am overlooking something obvious,

Any suggestions?

Thanks in advance,

 Gary Litwin
 UNIX Systems Administrator
 FlightSafety Boeing Training Intl.
 MS: 20-79
 (206) 662-8346

This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:14:06 CDT