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linux routing

hello,
I made linux server machine as router by
echo 1 > /proc/sys/net/ipv4/ip_forward.
I want to know does my linux server installation will send routing update messages to other linux server machine made router?
I want to know that which services send routing update messages on linux machines?
how they sent to other linux router?
Are they using UDP protocol to send RIP packets?
I am using Redhat 9.

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bstrauss3

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cranium2003

ASKER

So whats require to make linux mahine as function like Routers in Internet? I thought that
echo 1 > /proc/sys/net/ipv4/ip_forward
make linux machine as Router but i think its not Router but Packet Forwarder is that right?
So theres no way to make linux machine as Router?
I want to have environment that if i have 2 machines then they should use RIP. I want that type of simulation to study Routing in Internet. How to do that?

bstrauss3

Enabling ip_forward tells Linux to do just that - forward packets according to the interfaces it knows about.

So if eth0 is 192.168.0.1/24 and eth1 is 10.0.0.1/8 any packet on eth0 for 10.x.x.x gets forwarded out eth1. That's really all a router does, except it knows more about the networks on each side so it knows it can forward more packets. That's why you run a routing protocol like RIP or BGP or .... - to learn about these networks.

-----Burton

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joju

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