osbash@network:~$ sudo ip netns exec qrouter-17b93850-2f61-4677-aad0-abcbe9bc93df ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
15: qr-9545af30-ce: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default
    link/ether fa:16:3e:93:54:03 brd ff:ff:ff:ff:ff:ff
    inet 172.16.0.1/24 brd 172.16.0.255 scope global qr-9545af30-ce
       valid_lft forever preferred_lft forever
    inet6 fe80::f816:3eff:fe93:5403/64 scope link
       valid_lft forever preferred_lft forever
16: qg-0c0039d6-0e: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default
    link/ether fa:16:3e:2c:7e:d7 brd ff:ff:ff:ff:ff:ff
    inet 192.168.100.101/24 brd 192.168.100.255 scope global qg-0c0039d6-0e
       valid_lft forever preferred_lft forever
    inet6 fe80::f816:3eff:fe2c:7ed7/64 scope link
       valid_lft forever preferred_lft forever