[Openstack] Can ping external IPs from VM but can NOT get http response

Di DX Xu xudi at cn.ibm.com
Thu Aug 15 09:43:59 UTC 2013

Deal all,

I followed this instruction -
  and finished Grizzly installation on ubuntu 12.04 (3 nodes), and followed
this instruction -
 for the network configuration using OpenVSwitch and VLAN mode.

The VM can be associated with a floating IP successfully so I can ping some
external IPs from the VM, e.g., www.baidu.com, but when I try to get the
web page using "wget www.baidu.com", it will stuck:

$ wget www.baidu.com
--2013-08-15 05:41:55--  http://www.baidu.com/
Resolving www.baidu.com (www.baidu.com)...,
Connecting to www.baidu.com (www.baidu.com)||:80...
HTTP request sent, awaiting response...

It's weird as the external ip is pingable and the http connection is
established but can not get the http response...

Cloud anybody help on this? Many thanks!

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