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VMs cannot ping the Virtual Gateway

asked 2016-03-06 23:18:22 -0600

aditya28 gravatar image

I have set up Devstack with two virtual routers. One of the routers has an external IP and an internal IP of I have a private cloud which is in the network. I have spawned a VM in this cloud whose IP is I have also set up a floating IP: However, I am unable to ping the floating IP. Also, noticed that I am unable to ping the VM from the neutron. Output:

sudo ip netns exec qrouter-74759db2-9044-46eb-a32a-325995b88cf9 ping
PING ( 56(84) bytes of data.
From icmp_seq=1 Destination Host Unreachable
From icmp_seq=2 Destination Host Unreachable
From icmp_seq=3 Destination Host Unreachable
From icmp_seq=4 Destination Host Unreachable
--- ping statistics ---
5 packets transmitted, 0 received, +4 errors, 100% packet loss, time 3998ms
pipe 3

I also spawned a Cirros VM and found that it is not able to ping the gatway It worked last time around and this time, not sure what changed.

Please let me know if you need any other info. Please help me on this.

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answered 2016-03-08 01:28:07 -0600

Aun gravatar image

The best way to go ahead with identifying the exact issue is to use tcpdump on all important interfaces. Following document's "tcpdump" section should be helpful.

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Asked: 2016-03-06 23:18:22 -0600

Seen: 183 times

Last updated: Mar 08 '16