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abenson/share-wlan.sh

Created February 24, 2022 23:44
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Share WLAN to Ethernet
Raw
share-wlan.sh
#!/bin/sh
SYSCTL="sysctl -w net.ipv4.ip_forward"
case "$1" in
"-e")
sysctl -w net.ipv4.ip_forward=1
iptables -t nat -I POSTROUTING -o wlan0 -j MASQUERADE
iptables -I FORWARD -i eth0 -o wlan0 -j ACCEPT
ip addr del 10.10.10.1 dev eth0
;;
"-d")
sysctl -w net.ipv4.ip_forward=0
iptables -t nat -D POSTROUTING -o wlan0 -j MASQUERADE
iptables -D FORWARD -i eth0 -j ACCEPT
ip addr add 10.10.10.1 dev eth0
;;
*)
echo "usage: share-wlan.sh [-e|-d]"
;;
esac
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