# Revision history [back]

### External Gateway

I have a 3 node setup. 1 control setup as the network node also and 2 compute nodes. I am able to get instances of cirros running and after manually setting the ip addresses, i'm able to ping instances that are on the same network. DHCP never assigns an address and i get the following:

Starting network... udhcpc (v1.20.1) started Sending discover... Sending discover... Sending discover... No lease, failing

on the logs of the instances.

But they cant reach their external gateway on the router. This is what my Network Topology looks like:

http://i.imgur.com/Vx4L4dX.jpg

There so much info i could include but It would make the post all cluttered. Where should I begin to troubleshoot this?

 2 No.2 Revision larsks 5629 ●24 ●62 ●101 http://redhat.com/

### External Gateway

I have a 3 node setup. 1 control setup as the network node also and 2 compute nodes. I am able to get instances of cirros running and after manually setting the ip addresses, i'm able to ping instances that are on the same network. DHCP never assigns an address and i get the following:

Starting network...
udhcpc (v1.20.1) started
Sending discover...
Sending discover...
Sending discover...
No lease, failingfailing


on the logs of the instances.

But they cant reach their external gateway on the router. This is what my Network Topology looks like:

http://i.imgur.com/Vx4L4dX.jpg

There so much info i could include but It would make the post all cluttered. Where should I begin to troubleshoot this?