Duplicate Ping Packets - Promiscuous Mode?

asked 2013-11-27 16:25:26 -0500

antonnoble gravatar image

updated 2013-11-27 16:55:03 -0500

I am seeing duplicate ping packets when I ping an instance. This goes both ways...from the instance to the outside world and from the outside world to the instance.

root@openstackcloud1:~# ping
PING ( 56(84) bytes of data.
64 bytes from icmp_req=1 ttl=64 time=1.37 ms
64 bytes from icmp_req=1 ttl=64 time=1.44 ms (DUP!)
64 bytes from icmp_req=2 ttl=64 time=0.796 ms
64 bytes from icmp_req=2 ttl=64 time=0.822 ms (DUP!)

I noticed this bug: https://bugs.launchpad.net/nova/+bug/956474

And performed the ip link set brXXX promise off on both my controller and the instance...

I am running vSphere as my hypervisor and promiscuous mode is required on the vSwitch according to VMware documentation... If I turn it off traffic to my instance stops.


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