Routing problem

Discussions of the Ethernet/IEEE 802.3 protocols.

Routing problem

Postby Luca » Mon Dec 12, 2005 9:48 pm

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
Luca
 

Re: Routing problem

Postby Walter Roberson » Mon Dec 12, 2005 9:48 pm

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.
Walter Roberson
 

Re: Routing problem

Postby David Tiktin » Tue Dec 13, 2005 12:20 pm

The question is: how do I set the server to let a host on one LAN
to ping another host on the other LAN?

Enable forwarding. You can google for it or just see

http://www.yolinux.com/TUTORIALS/LinuxT ... rking.html

Dave

--
D.a.v.i.d T.i.k.t.i.n
t.i.k.t.i.n [at] a.d.v.a.n.c.e.d.r.e.l.a.y [dot] c.o.m
David Tiktin
 


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