Comment 2 for bug 956474

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Anthony Young (sleepsonthefloor) wrote :

You can actually reproduce a similar scenario with just one vm:

> Boot instance
> Associate floating ip
> From within the instance, try to ping an external address (e.g. google.com)

This results in the following:

(from vm)
$ ping google.com
PING google.com (74.125.225.65): 56 data bytes
64 bytes from 74.125.225.65: seq=0 ttl=128 time=85.824 ms
64 bytes from 74.125.225.65: seq=0 ttl=127 time=88.867 ms (DUP!)

Doing as Evan suggests on the host machine corrects the issue:

(on host)
$ sudo ip link set br100 promisc off

(from vm)
$ ping google.com
PING google.com (74.125.225.99): 56 data bytes
64 bytes from 74.125.225.99: seq=0 ttl=128 time=81.363 ms