Routing All Your Traffic

• The Classic Solutions

Overriding The Default Route

ip route add 0.0.0.0/1 dev wg0
ip route add 128.0.0.0/1 dev wg0
ip route add 163.172.161.0/32 via 192.168.1.1 dev eth0

Rule-based Routing

wg set wg0 fwmark 1234
ip route add default dev wg0 table 2468
ip rule add not fwmark 1234 table 2468
ip rule add table main suppress_prefixlength 0

• The New Namespace Solution

ip netns add physical

ip link set eth0 netns physical
iw phy phy0 set netns name physical

ip -n physical link add wg0 type wireguard

ip -n physical link set wg0 netns 1

ip netns exec physical dhcpcd wlan0
ip netns exec physical wpa_supplicant -iwlan0 -c/etc/wpa_supplicant/wpa_supplicant.conf
ip -n physical addr add 192.168.12.52/24 dev eth0

wg setconf wg0 /etc/wireguard/wg0.conf
ip addr add 10.2.4.5/32 dev wg0
ip link set wg0 up
ip route add default dev wg0

Link

Container Networking Is Simple