create router add interface and gateway not assign ip

root@infra1-neutron-agents-container-80c813c6:~# ip netns
qrouter-3d950534-7de5-471a-9fbf-df4367ff2d6e
qdhcp-a45542bf-5e97-4df5-bb3d-fc30f30343de
qdhcp-bd933138-3fb2-4f8d-8cee-e748f08a685f
root@infra1-neutron-agents-container-80c813c6:~# ip netns exec qrouter-3d950534-7de5-471a-9fbf-df4367ff2d6e ifconfig
ha-03c6f6b4-7d Link encap:Ethernet  HWaddr fa:16:3e:13:a7:27
          inet addr:169.254.192.3  Bcast:169.254.255.255  Mask:255.255.192.0
          inet6 addr: fe80::f816:3eff:fe13:a727/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1450  Metric:1
          RX packets:3307 errors:0 dropped:0 overruns:0 frame:0
          TX packets:18 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:178398 (178.3 KB)  TX bytes:1332 (1.3 KB)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

qg-5b9059d8-c1 Link encap:Ethernet  HWaddr fa:16:3e:9e:c9:1e
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10616 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:551668 (551.6 KB)  TX bytes:868 (868.0 B)

qr-17ab4867-96 Link encap:Ethernet  HWaddr fa:16:3e:c3:5f:cd
          UP BROADCAST RUNNING MULTICAST  MTU:1450  Metric:1
          RX packets:1 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:42 (42.0 B)  TX bytes:478 (478.0 B)