Hi,

I am quite new to LVS and I wanted to understand it from the basics. So I set 
up a LVS director according to the mini howto, NAT manual example

http://www.austintek.com/LVS/LVS-HOWTO/mini-HOWTO/LVS-mini-HOWTO.html#example_LVS-NAT

for tests I only used one real server.
ipvsadm look like:
xen01:~# ipvsadm
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
  -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
TCP  xen01:telnet rr
  -> 192.168.200.16:telnet        Masq    1      1          0


When I telnet from a client to the virtual server address I see:

---
Connected to 192.168.188.101.
Escape character is '^]'.

---

But no login line. The same with HTTP protocol. No Application data are 
displayed in the client.

If I reconfigure my director as a plain router eveything works smooth. I can 
log into the real server with telnet, at least I see a login line.

When i tcpdump on the real server and the client I do see no difference in 
number and contents of the packets on both machines.
When the connection hangs I see a lot of
Server:23 -> Client:3796 P 1:13(12) ack 25 win 362  <nop,nop,timestamp 
21277911 3009388219>
but no packet back from the client.

It seems that something very strange happens. Perhaps anybody gor an idea? 
Where should I search further?

I use debian etch. Director and real server and virtual xen virtual machines. 
Client is a real machine.

ipvsadm version 1.24+1.21-1.4

-- 
Dr. Michael Schwartzkopff
MultiNET Services GmbH
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Skype: misch42

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