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[Puneet Arora <apuneet@xxxxxxxxxx>]

Public bug reported:

Horizon should be restricted to display overlapping networks which can
be added as interface to same router.

Steps:
1) Create network-1 and subnet-1 with cidr 10.0.0.0/24
2) Create network-2 and subnet-2 with cidr 10.0.0.0/24 (Note*:  Overlapping networks)
3) Create router-1.
4) From horizon please go to Project --> Network --> Routers --> router1.
5) Add router1 interface to subnet-1.
6) Add router1 interface to subnet-2 now exception appears. 


While performing step 6, if router is already added to subnet-1 then subnet-2 shouldn't get displayed because both are overlapping networks. 
There is no sense of displaying subnet-2 to get attach to router it will lead to result in exception.
 
Is Horizon could be improved to filter if there is a a overlapping network and it could exclude that?

** Affects: neutron
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1746533

Title:
  Horizon should be restricted to display overlapping network as
  interface to router

Status in neutron:
  New

Bug description:
  Horizon should be restricted to display overlapping networks which can
  be added as interface to same router.

  Steps:
  1) Create network-1 and subnet-1 with cidr 10.0.0.0/24
  2) Create network-2 and subnet-2 with cidr 10.0.0.0/24 (Note*:  Overlapping networks)
  3) Create router-1.
  4) From horizon please go to Project --> Network --> Routers --> router1.
  5) Add router1 interface to subnet-1.
  6) Add router1 interface to subnet-2 now exception appears. 


  While performing step 6, if router is already added to subnet-1 then subnet-2 shouldn't get displayed because both are overlapping networks. 
  There is no sense of displaying subnet-2 to get attach to router it will lead to result in exception.
   
  Is Horizon could be improved to filter if there is a a overlapping network and it could exclude that?

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