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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: neutron
       Status: Fix Committed => Fix Released

** Changed in: neutron
    Milestone: None => liberty-1

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https://bugs.launchpad.net/bugs/1384146

Title:
  Inconsistent enable_snat management

Status in OpenStack Neutron (virtual network service):
  Fix Released

Bug description:
  Neutron reset enable_snat on router-gateway-clear but not on router-
  gateway-set which implies inconsistent behavior:

  
  # pub1, pub2 are external networks and router1 is a router

  (neutron) router-gateway-set router1 pub1 --disable-snat
  Set gateway for router router
  (neutron) router-show router1 -c external_gateway_info
  +-----------------------+------------------------------------------------------------------------------+
  | Field                 | Value                                                                        |
  +-----------------------+------------------------------------------------------------------------------+
  | external_gateway_info | {"network_id": "1682e4f4-7dc4-4ed0-bd10-e526ab2f6f81", "enable_snat": false} |
  +-----------------------+------------------------------------------------------------------------------+
  (neutron) router-gateway-clear router
  Removed gateway from router router
  (neutron) router-gateway-set router pub2 
  Set gateway for router router
  (neutron) router-show router1 -c external_gateway_info
  +-----------------------+------------------------------------------------------------------------------+
  | Field                 | Value                                                                        |
  +-----------------------+------------------------------------------------------------------------------+
  | external_gateway_info | {"network_id": "a32bcb44-165a-4de8-a8db-35f6ff8f2712", "enable_snat": true} |
  +-----------------------+------------------------------------------------------------------------------+

  ==> enable_snat == False lost during router-gateway-clear


  (neutron) router-gateway-set router1 pub1 --disable-snat
  Set gateway for router router
  (neutron) router-show router1 -c external_gateway_info
  +-----------------------+------------------------------------------------------------------------------+
  | Field                 | Value                                                                        |
  +-----------------------+------------------------------------------------------------------------------+
  | external_gateway_info | {"network_id": "1682e4f4-7dc4-4ed0-bd10-e526ab2f6f81", "enable_snat": false} |
  +-----------------------+------------------------------------------------------------------------------+
  (neutron) router-gateway-set router pub2 
  Set gateway for router router
  (neutron) router-show router1 -c external_gateway_info
  +-----------------------+------------------------------------------------------------------------------+
  | Field                 | Value                                                                        |
  +-----------------------+------------------------------------------------------------------------------+
  | external_gateway_info | {"network_id": "a32bcb44-165a-4de8-a8db-35f6ff8f2712", "enable_snat": false} |
  +-----------------------+------------------------------------------------------------------------------+

  ==> enable_snat == False not lost during router-gateway-set

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