Re: Routing problem

Linux Advanced Routing and Traffic Control

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Hi Pereira,
i have one firewall/gateway server with two interfaces and a routing problem (?).

eth0: external interface eth1: internal interface. Both ip address are valid. Anyone can help me to find where is the problem? I think it´s a routing problem, but i don´t know where it is...

Has your ISP placed routing entries for eth1 IP via eth0 IP ? Are they on the same subnets ? If you do a traceroute from the internet, you should see your hops hit eth0 (and then if everything was working, hit eth1)

> Of course. IP_FORWARDING is enable for a long time.
I assume you've also turned it on in /proc/sys/net/ipv4/ip_forward ?

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