| #!/bin/bash -e | |
| ifname="$1" | |
| ifaddr="$2" | |
| ifmask="$3" | |
| echo "*** Configuring tun $ifname with addr $ifaddr/$ifmask" | |
| if grep "$ifname" /proc/net/dev > /dev/null; then | |
| ip tuntap del name "$ifname" mode tun | |
| fi | |
| ip tuntap add name "$ifname" mode tun | |
| ip addr add "$ifaddr/$ifmask" dev "$ifname" | |
| ip link set "$ifname" up | |
| echo "*** done configuring tun interface $ifname" |