linux-packet-forwarding
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Table of Contents
Linux Packet Forwarding
Basic outgoing masquerding script
#!/bin/bash network=192.168.3.0/24 ext_if=eth0 ext_ip=$(ip address show $ext_if | awk -F "[ /]" '/inet / { print $6 }') echo 1 > /proc/sys/net/ipv4/ip_forward iptables -t nat -A POSTROUTING -s $network -o $ext_if -j SNAT --to-source $ext_ip
Incoming port forwarding
#!/bin/bash port=80 host=192.168.3.80 iptables -t nat -A PREROUTING -m tcp -p tcp --dport $port -j DNAT --to-destination $host:$port
linux-packet-forwarding.1518367286.txt.gz · Last modified: 2018/02/11 17:41 by baumi