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[Bug 2008808] [NEW] Duplicate packet when ping to external with out floating ip

 

Public bug reported:

i build openstack yoga cluster: 3 node control, 2 node network, 2 node compute.
i create network and router success.
i create Instance and ping to external network
- when use floating ip: ok
- without floating ip: packer respond is duplicate ubuntu@msql:~$ ping 1.1.1.1
PING 1.1.1.1 (1.1.1.1) 56(84) bytes of data.
64 bytes from 1.1.1.1: icmp_seq=1 ttl=56 time=26.1 ms
64 bytes from 1.1.1.1: icmp_seq=1 ttl=56 time=26.1 ms (DUP!)
64 bytes from 1.1.1.1: icmp_seq=2 ttl=56 time=26.0 ms
64 bytes from 1.1.1.1: icmp_seq=2 ttl=56 time=26.0 ms (DUP!)
64 bytes from 1.1.1.1: icmp_seq=3 ttl=56 time=25.0 ms
64 bytes from 1.1.1.1: icmp_seq=3 ttl=56 time=25.0 ms (DUP!)
64 bytes from 1.1.1.1: icmp_seq=4 ttl=56 time=24.6 ms
64 bytes from 1.1.1.1: icmp_seq=4 ttl=56 time=24.6 ms (DUP!)
64 bytes from 1.1.1.1: icmp_seq=5 ttl=56 time=24.5 ms
64 bytes from 1.1.1.1: icmp_seq=5 ttl=56 time=24.5 ms (DUP!)

** Affects: neutron
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2008808

Title:
  Duplicate packet when ping to external with out floating ip

Status in neutron:
  New

Bug description:
  i build openstack yoga cluster: 3 node control, 2 node network, 2 node compute.
  i create network and router success.
  i create Instance and ping to external network
  - when use floating ip: ok
  - without floating ip: packer respond is duplicate ubuntu@msql:~$ ping 1.1.1.1
  PING 1.1.1.1 (1.1.1.1) 56(84) bytes of data.
  64 bytes from 1.1.1.1: icmp_seq=1 ttl=56 time=26.1 ms
  64 bytes from 1.1.1.1: icmp_seq=1 ttl=56 time=26.1 ms (DUP!)
  64 bytes from 1.1.1.1: icmp_seq=2 ttl=56 time=26.0 ms
  64 bytes from 1.1.1.1: icmp_seq=2 ttl=56 time=26.0 ms (DUP!)
  64 bytes from 1.1.1.1: icmp_seq=3 ttl=56 time=25.0 ms
  64 bytes from 1.1.1.1: icmp_seq=3 ttl=56 time=25.0 ms (DUP!)
  64 bytes from 1.1.1.1: icmp_seq=4 ttl=56 time=24.6 ms
  64 bytes from 1.1.1.1: icmp_seq=4 ttl=56 time=24.6 ms (DUP!)
  64 bytes from 1.1.1.1: icmp_seq=5 ttl=56 time=24.5 ms
  64 bytes from 1.1.1.1: icmp_seq=5 ttl=56 time=24.5 ms (DUP!)

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