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Luca · Guest

Hi folks, I need help solving the following problem.
I have two LANs, one with ip 192.168.100.0 and subnet 255.255.255.0, the
other with ip 192.168.200.0 and subnet 255.255.255.0.
I need to connect the the two LANs using a server (can be Linux or
Windows, your choice). One LAN card of the server has ip 192.168.100.1,
the other has 192.168.200.1, so:

192.168.100.1 | 192.168.200.1
LAN1 -------------- SERVER -------------- LAN2
192.168.100.0 192.168.200.0
255.255.255.0 255.255.255.0

The question is: how do I set the server to let a host on one LAN to
ping another host on the other LAN?
Any help is appreciated.
Thank you
Luca

Walter Roberson · Guest

I'm not particularily familiar with Linux, but in a number of Unix
systems, all you need to do is configure (or "tune") the IP stack
to permit forwarding of IP packets between interfaces. The rest
of the work would all get handled through the normal Unix routing
procedures.

For example, in SGI's IRIX, all that would be necessary would
be to become root and command systune ipfowarding 1

In Linux, it's probably something closer to

echo 1 >> /proc/net/forwarding

but that's just an example of the general style; I don't know which
file you would need.

If I recall correctly, in Windows, it's one of the security policies
("manage computer" -- mmc) but I couldn't find it in a fish through
Windows 2000 Professional. It might have been on XP that I was looking.
--
Programming is what happens while you're busy making other plans.

David Tiktin · Guest

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