[plug] End of my LVS rope

[Adam Hewitt]

Hi All,

I have setup and LVS testbed at work which looks like the following

client <---> router <---> director <---> real server
                                                         |----> real 
server

the real servers are running postfix.

When I telnet to the Virtual IP on the director on port 25 I can see 
the traffic leave the client, get to the router, then to the director, 
which sends it to a random real server, the real server then send the 
packets back to the director and the packets are dropped.

First thought would be default route, of which the director has the 
router as the default.

Second I thought maybe firewall rules, but I have flushed and set them 
all to ACCEPT.

Thirdly I thought maybe it was the rp_filter because the traffic coming 
from the real servers has the source address of the Virtual interface 
of the director, but I messed around with them and it didn't help.

What is wierd is that if I ping the client from a real server it works, 
but that could be because the source address is the real ip address of 
the real server, but I can't see how it would be different from my 
configuration

I have had one of the other admins to have a look and see if he can 
comprehend it, but to no avail.

I can now no longer think of anything else that would be causing a 
problem.

Does anyone have any idea as to why this would be happening?

Cheers,

Adam.