Re: iptables help
From: Juha Laiho (Juha.Laiho_at_iki.fi)
Date: 10/13/03
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Date: Mon, 13 Oct 2003 15:12:01 GMT
grafyt <vze2bd6u@verizon.net> said:
>installed redhat 9 on a machine to use as a gateway for a small home
>lan... read the manual but am confused as to how to set up iptables to
>allow traffic through the linux box for a couple of windows boxes
...
>eth0 is the nic connected to the internal lan and eth1 is connected to
>the dsl modem... using ip addresses 192.168.0.1 through 192.168.0.1 (
>may add more machines later )
Some confusion apparently -- the following line should be everything
you need in iptables:
iptables -t nat -I POSTROUTING -o eth1 -j MASQUERADE
Then the other thing; your machine apparently needs to be configured to
route packages between interfaces. I think on RH9 this should be done by
adding line "net.ipv4.ip_forward=1" to file /etc/sysctl.conf .
You can bring this change immediately into effect with command
sysctl -w net.ipv4.ip_forward=1
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Wolf a.k.a. Juha Laiho Espoo, Finland
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