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By erklaerbaer at 2007-04-27 16:53
This was only tested with Slackware, but should work on almost every other distribution and even for Windows.

Assume this is your setup:
A --> B --> Internet

You want to connect A to the internet, B is already connected.

Run this
Code:
  if [ -f /proc/sys/net/ipv4/ip_forward ]; then
    echo "Activating IPv4 packet forwarding."
    echo 1 > /proc/sys/net/ipv4/ip_forward
  fi
iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE
on B as root and this
Code:
route add default gw $(ipadresse of B)
on A.

Done. Isn't it great?

You could setup a DHCP daemon on B to automate some things, but there are other HOWTOs for that.

by teluguswan on Sat, 2009-12-05 22:49
Very nice easy and shortcut

why dont you provide the example


by placing the values of A, B and ipaddress


that will be more helpfull to understand


  



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