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2015-03-17 20:40:28 -0500 asked a question Question about reverse path check on openvswitch

Hi experts, I launched two instances on openstack, one named compute node with Ethernet: eth0 (192.168.1.82), one named controller node with two Ethernets: eth0(192.168.1.80), eth1(192.168.2.4). And these two instances connect to one router. The router have two ports: 192.168.1.1 and 192.168.2.1. The strange thing is:

   When I ping compute node from eth0 on controller node:

   192.168.1.80 -> 192.168.1.82
   I can get reply.

   When I ping eth0 on controller node from compute node.

   192.168.1.82->192.168.1.80
   I can get reply.

   when I ping compute node from eth1 on controller node:

   192.168.2.4 -> 192.168.1.82
   I can get reply.

   But, when I ping eth1 on controller node from compute node, strange things happen:

   192.168.1.82->192.168.2.4
   I didn’t get reply.

I track the packet path, found that the packet lost during the two tap devices which connected to two eth0 Ethernet, I think it should be the reverse path check issue, but I disable the reverse path check on the openstack system, it still lost packet during the two ports in br-tun.

Can anyone give some hints?

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2014-07-28 02:44:30 -0500 commented question connect instance from VNC viewer

Resolved this issue by change the security rule. Just pass the vnc stream from the firewall is work.

2014-07-13 22:53:53 -0500 asked a question connect instance from VNC viewer

I lanuch some instances, I want to enable vnc server on them, and then let different users can connect to their instance via VNC from their local VNC viewer, but it seems we only can use novnc to connect the instance from web browser? And what's the worse, the token will be invalid after 5 minutes if no active on that instance, so as an admin, I need to update the URL for all the users if the token is invalid, that is unacceptable. My question is: Do we have a way to connect VNC on instance for different users?

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