DVR: Static routes are not configured in snat-namespase for DVR Routers

[Swaminathan Vasudevan]

Static routes are not configured in snat-namespace for DVR routers.

Steps to reproduce:
1. Create Network
2. Create Subnet
3. Create Router
4. Add interface to Router
5. Set gateway for the Router
6. Add a static route (next hop to the Router)
7. Go check the 'snat-namespace' if the static routes are configured in there.

stack@ubuntu-ctlr:~/devstack$ neutron router-update router2-alt-demo --route destination=10.3.0.0/24,nexthop=192.168.100.20
neutron CLI is deprecated and will be removed in the future. Use openstack CLI instead.
Updated router: router2-alt-demo
stack@ubuntu-ctlr:~/devstack$
stack@ubuntu-ctlr:~/devstack$
stack@ubuntu-ctlr:~/devstack$ sudo ip netns exec snat-152504be-c68e-4918-bf8f-d8c4d8c27d4d bash
root@ubuntu-ctlr:~/devstack# ip route
default via 192.168.100.9 dev qg-c5919234-7c
10.2.0.0/24 via 192.168.100.12 dev qg-c5919234-7c
192.168.100.0/24 dev qg-c5919234-7c proto kernel scope link src 192.168.100.20
root@ubuntu-ctlr:~/devstack#
root@ubuntu-ctlr:~/devstack#
root@ubuntu-ctlr:~/devstack#
root@ubuntu-ctlr:~/devstack# ifconfig
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:1
          RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

qg-c5919234-7c Link encap:Ethernet HWaddr fa:16:3e:b7:2c:72
          inet addr:192.168.100.20 Bcast:192.168.100.255 Mask:255.255.255.0
          inet6 addr: fe80::f816:3eff:feb7:2c72/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:81 errors:0 dropped:3 overruns:0 frame:0
          TX packets:74 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1
          RX bytes:5334 (5.3 KB) TX bytes:5801 (5.8 KB)

sg-23b90333-cc Link encap:Ethernet HWaddr fa:16:3e:87:bb:ac
          inet addr:10.2.0.8 Bcast:10.2.0.255 Mask:255.255.255.0
          inet6 addr: fe80::f816:3eff:fe87:bbac/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1450 Metric:1
          RX packets:2770 errors:0 dropped:0 overruns:0 frame:0
          TX packets:45 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1
          RX bytes:219841 (219.8 KB) TX bytes:4028 (4.0 KB)

root@ubuntu-ctlr:~/devstack# ip route
default via 192.168.100.9 dev qg-c5919234-7c
10.2.0.0/24 via 192.168.100.12 dev qg-c5919234-7c
192.168.100.0/24 dev qg-c5919234-7c proto kernel scope link src 192.168.100.20
root@ubuntu-ctlr:~/devstack#
root@ubuntu-ctlr:~/devstack# exit
exit
stack@ubuntu-ctlr:~/devstack$ sudo ip netns
snat-6a6fdb6e-8284-4439-b5aa-f574d91948ae
qrouter-6a6fdb6e-8284-4439-b5aa-f574d91948ae
snat-152504be-c68e-4918-bf8f-d8c4d8c27d4d
qrouter-152504be-c68e-4918-bf8f-d8c4d8c27d4d
qdhcp-a0e5b756-7b19-42b0-8e53-4f23f1adcc72
snat-9e989be2-b0af-4f0b-8532-a6f307fb40b4
fip-205f29cd-359c-4f7c-b29e-d276d199640e
qrouter-9e989be2-b0af-4f0b-8532-a6f307fb40b4
qdhcp-03a725ab-04b5-4071-884f-00d7a7549e12
stack@ubuntu-ctlr:~/devstack$ sudo ip netns exec qrouter-152504be-c68e-4918-bf8f-d8c4d8c27d4d bash
root@ubuntu-ctlr:~/devstack# ip route
10.2.0.0/24 dev qr-d26ef7c2-18 proto kernel scope link src 10.2.0.1
169.254.109.46/31 dev rfp-152504be-c proto kernel scope link src 169.254.109.46
root@ubuntu-ctlr:~/devstack# exit
exit
stack@ubuntu-ctlr:~/devstack$ sudo ip netns
snat-6a6fdb6e-8284-4439-b5aa-f574d91948ae
qrouter-6a6fdb6e-8284-4439-b5aa-f574d91948ae
snat-152504be-c68e-4918-bf8f-d8c4d8c27d4d
qrouter-152504be-c68e-4918-bf8f-d8c4d8c27d4d
qdhcp-a0e5b756-7b19-42b0-8e53-4f23f1adcc72
snat-9e989be2-b0af-4f0b-8532-a6f307fb40b4
fip-205f29cd-359c-4f7c-b29e-d276d199640e
qrouter-9e989be2-b0af-4f0b-8532-a6f307fb40b4
qdhcp-03a725ab-04b5-4071-884f-00d7a7549e12
stack@ubuntu-ctlr:~/devstack$ sudo ip netns exec fip-205f29cd-359c-4f7c-b29e-d276d199640e bash
root@ubuntu-ctlr:~/devstack# ip route
169.254.93.94/31 dev fpr-6a6fdb6e-8 proto kernel scope link src 169.254.93.95
169.254.106.114/31 dev fpr-9e989be2-b proto kernel scope link src 169.254.106.115
169.254.109.46/31 dev fpr-152504be-c proto kernel scope link src 169.254.109.47
192.168.100.0/24 dev fg-a6777b4d-f7 proto kernel scope link src 192.168.100.11
root@ubuntu-ctlr:~/devstack# ip rule
0: from all lookup local
32766: from all lookup main
32767: from all lookup default
2852019551: from all iif fpr-6a6fdb6e-8 lookup 2852019551
2852022899: from all iif fpr-9e989be2-b lookup 2852022899
2852023599: from all iif fpr-152504be-c lookup 2852023599
root@ubuntu-ctlr:~/devstack# ip route s t 2852019551
default via 192.168.100.9 dev fg-a6777b4d-f7
10.3.0.0/24 via 192.168.100.20 dev fg-a6777b4d-f7
root@ubuntu-ctlr:~/devstack#

[Swaminathan Vasudevan (swaminathan-vasudevan)]

User error.