Share Internet by crossover cable

Question

How can I share Internet connection by crossover cable?
I have Ubutnu on my laptop. On there, wireless and everything works.
However I am trying to install Arch-linux on my main (desktop) PC. And there, during basic install, it can not detect my wireless connection.
How can I share connection from my laptop with my desktop?
How can I connect to the connect on my laptop from Arch?
Last edited by kdar (2009-12-12 21:42:34)

Answer 1

eldragon wrote:
#!/bin/bash
# Shares internet from wlan0 through eth0
case "$1" in
start)
ifconfig eth0 up
ifconfig eth0 192.168.0.1
iptables --table nat --append POSTROUTING --out-interface wlan0 -j MASQUERADE
iptables --append FORWARD --in-interface eth0 -j ACCEPT
echo 1 > /proc/sys/net/ipv4/ip_forward
echo "set other computers in the range of"
echo "192.168.0.0 255.255.255.0"
echo "gateway 192.168.0.1"
echo "dns 192.168.10.1" #this is my router's ip, you should use yours or another dns server
stop)
echo 0 > /proc/sys/net/ipv4/ip_forward
ifconfig eth0 down
iptables --table nat --delete POSTROUTING --out-interface wlan0 -j MASQUERADE
echo "usage: $0 {start|stop}"
esac
this does just that
check if iface names and ips fit your gear, the network between both computers connected with the x-over cable must be different from your router's lan network.
Wow! I got to try this out!