commit 6601f90e38eb28569605401e4210731a71c90e8e parent 766b82f96aa5b68703761528eea9e9e88ffceedf Author: Stefan Koch <programming@stefan-koch.name> Date: Thu, 3 Dec 2020 19:50:45 +0100 create a script to setup bridge and tap quickly Diffstat:
| A | bin/setup-tap-vde.sh | | | 49 | +++++++++++++++++++++++++++++++++++++++++++++++++ |
1 file changed, 49 insertions(+), 0 deletions(-)
diff --git a/bin/setup-tap-vde.sh b/bin/setup-tap-vde.sh @@ -0,0 +1,49 @@ +#!/usr/bin/env bash + +usage() { + echo "Usage: $0 -u USER -i IP_ADDRESS -g GATEWAY -e eth_device_DEVICE" +} + +while getopts ":hu:i:g:e:" opt; do + case "$opt" in + h|\?) + usage + exit 0 + ;; + u) user=$OPTARG + ;; + i) ip_address=$OPTARG + ;; + g) gateway=$OPTARG + ;; + e) eth_device=$OPTARG + ;; + esac +done + +if [[ -z $user || -z $ip_address || -z $gateway || -z $eth_device ]]; then + usage + echo + echo "Please specify all required arguments" + exit 1 +fi + + +VDE_TAP=tap-vde + +ip link add br0 type bridge +ip link set br0 up + +ip link set $eth_device up +ip link set $eth_device master br0 + +# Drop existing IP from eth0 +ip addr flush dev $eth_device + +# Assign IP to br0 +ip addr add $ip_address brd + dev br0 +ip route add default via $gateway dev br0 + +ip tuntap add dev $VDE_TAP mode tap user $user +ip link set dev $VDE_TAP up +ip link set $VDE_TAP master br0