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[Rodolfo Alonso <1923592@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

The router namespace routes for other segment CIDRs, should have the
"via" parameter to the gateway IP address.

The environment I'm using has HA routers; I didn't test yet with DVR or
legacy routers.

For example, in my env [1]:
- Network: public
- Subnets:
  (s1) aebc3fc1-d984-40aa-8405-db51df03f60d: 10.46.54.0/26,  gwip: 10.46.54.62
  (s2) 55a66c34-3643-49ba-ab8c-326ee76e5f35: 10.46.54.64/26, gwip: 10.46.54.126
- Router namespace:

[root@controller-0 ~]# ip netns exec $r ip r
default via 10.46.54.62 dev qg-7847fd00-72 proto 112
default via 10.46.54.62 dev qg-7847fd00-72 proto static
10.1.0.0/16 dev qr-d224ca69-77 proto kernel scope link src 10.1.0.1
10.46.54.0/26 dev qg-7847fd00-72 proto kernel scope link src 10.46.54.34
10.46.54.64/26 dev qg-7847fd00-72 proto 112 scope link
10.46.54.64/26 dev qg-7847fd00-72 proto static scope link
169.254.0.0/24 dev ha-91b6c056-57 proto kernel scope link src 169.254.0.233
169.254.192.0/18 dev ha-91b6c056-57 proto kernel scope link src 169.254.193.151

This router is attached to the segment of the subnet
aebc3fc1-d984-40aa-8405-db51df03f60d (s1).

The route to 10.46.54.64/26 (the other subnet/segment this router is NOT
attached to), should have the gateway IP address of the subnet that
belongs to the segment the router is attached to; in this case, as
commented, (s1).

[1]http://paste.openstack.org/show/804429/

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1945061

** Affects: neutron
     Importance: Undecided
     Assignee: Rodolfo Alonso (rodolfo-alonso-hernandez)
         Status: New

** Description changed:

  The router namespace routes for other segment CIDRs, should have the
  "via" parameter to the gateway IP address.
  
  The environment I'm using has HA routers; I didn't test yet with DVR or
  legacy routers.
  
  For example, in my env [1]:
  - Network: public
  - Subnets:
-   (s1) aebc3fc1-d984-40aa-8405-db51df03f60d: 10.46.54.0/26,  gwip: 10.46.54.62
-   (s2) 55a66c34-3643-49ba-ab8c-326ee76e5f35: 10.46.54.64/26, gwip: 10.46.54.126
+   (s1) aebc3fc1-d984-40aa-8405-db51df03f60d: 10.46.54.0/26,  gwip: 10.46.54.62
+   (s2) 55a66c34-3643-49ba-ab8c-326ee76e5f35: 10.46.54.64/26, gwip: 10.46.54.126
  - Router namespace:
  
  [root@controller-0 ~]# ip netns exec $r ip r
- default via 10.46.54.62 dev qg-7847fd00-72 proto 112 
- default via 10.46.54.62 dev qg-7847fd00-72 proto static 
- 10.1.0.0/16 dev qr-d224ca69-77 proto kernel scope link src 10.1.0.1 
- 10.46.54.0/26 dev qg-7847fd00-72 proto kernel scope link src 10.46.54.34 
- 10.46.54.64/26 dev qg-7847fd00-72 proto 112 scope link 
- 10.46.54.64/26 dev qg-7847fd00-72 proto static scope link 
- 169.254.0.0/24 dev ha-91b6c056-57 proto kernel scope link src 169.254.0.233 
- 169.254.192.0/18 dev ha-91b6c056-57 proto kernel scope link src 169.254.193.151 
+ default via 10.46.54.62 dev qg-7847fd00-72 proto 112
+ default via 10.46.54.62 dev qg-7847fd00-72 proto static
+ 10.1.0.0/16 dev qr-d224ca69-77 proto kernel scope link src 10.1.0.1
+ 10.46.54.0/26 dev qg-7847fd00-72 proto kernel scope link src 10.46.54.34
+ 10.46.54.64/26 dev qg-7847fd00-72 proto 112 scope link
+ 10.46.54.64/26 dev qg-7847fd00-72 proto static scope link
+ 169.254.0.0/24 dev ha-91b6c056-57 proto kernel scope link src 169.254.0.233
+ 169.254.192.0/18 dev ha-91b6c056-57 proto kernel scope link src 169.254.193.151
  
  This router is attached to the segment of the subnet
  aebc3fc1-d984-40aa-8405-db51df03f60d (s1).
  
  The route to 10.46.54.64/26 (the other subnet/segment this router is NOT
  attached to), should have the gateway IP address of the subnet that
  belongs to the segment the router is attached to; in this case, as
  commented, (s1).
  
  [1]http://paste.openstack.org/show/804429/
+ 
+ Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1945061

** Changed in: neutron
     Assignee: (unassigned) => Rodolfo Alonso (rodolfo-alonso-hernandez)

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https://bugs.launchpad.net/bugs/1923592

Title:
  [Routed networks] Router routes to other segment CIDRs should have a
  gateway IP

Status in neutron:
  New

Bug description:
  The router namespace routes for other segment CIDRs, should have the
  "via" parameter to the gateway IP address.

  The environment I'm using has HA routers; I didn't test yet with DVR
  or legacy routers.

  For example, in my env [1]:
  - Network: public
  - Subnets:
    (s1) aebc3fc1-d984-40aa-8405-db51df03f60d: 10.46.54.0/26,  gwip: 10.46.54.62
    (s2) 55a66c34-3643-49ba-ab8c-326ee76e5f35: 10.46.54.64/26, gwip: 10.46.54.126
  - Router namespace:

  [root@controller-0 ~]# ip netns exec $r ip r
  default via 10.46.54.62 dev qg-7847fd00-72 proto 112
  default via 10.46.54.62 dev qg-7847fd00-72 proto static
  10.1.0.0/16 dev qr-d224ca69-77 proto kernel scope link src 10.1.0.1
  10.46.54.0/26 dev qg-7847fd00-72 proto kernel scope link src 10.46.54.34
  10.46.54.64/26 dev qg-7847fd00-72 proto 112 scope link
  10.46.54.64/26 dev qg-7847fd00-72 proto static scope link
  169.254.0.0/24 dev ha-91b6c056-57 proto kernel scope link src 169.254.0.233
  169.254.192.0/18 dev ha-91b6c056-57 proto kernel scope link src 169.254.193.151

  This router is attached to the segment of the subnet
  aebc3fc1-d984-40aa-8405-db51df03f60d (s1).

  The route to 10.46.54.64/26 (the other subnet/segment this router is
  NOT attached to), should have the gateway IP address of the subnet
  that belongs to the segment the router is attached to; in this case,
  as commented, (s1).

  [1]http://paste.openstack.org/show/804429/

  Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1945061

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