[lvs-users] ipvsadm tun setup

David Coulson david at davidcoulson.net
Wed Jan 28 22:27:03 GMT 2015


LVS does the encapsulation naively - there is no tunnel interface.

If you do packet captures on the interface pointing to your real server 
you'll see the outgoing IPIP encapsulated packets.

On 1/28/15 4:25 PM, Mark Clarke wrote:
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> Hi all,
>
> I have a questions about ipvsadm setup with a tunnel setup. On
> the director is the tunnel setup by the ipvsadm process? i.e there is
> no need on the director to do a "ip add tunnel mode ipip ..."?
>
> I cannot see a tunnel created by the ipvsadm process with "ip tunnel
> show"? How can I do a tcpdump to see what is happening on that tunnel?
>
> How can I use my standard network troubleshooting tools to tell what
> is going on? There is no device I can listen on such as tunl0?
>
> thanks
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