LVS/Tun is not working

[jarol1@seznam.cz]

Kalpin Erlangga Silaen wrote:
> Try to access Load Balancer from outside and check connection at load 
> balancer:
> [root at balancer ha.d]# ipvsadm -l -n --connection
> IPVS connection entries
> pro expire state       source             virtual            destination
> TCP 00:59  SYN_RECV    202.87.24.5:33354 202.34.196.212:80  
> 202.34.196.213:80
>
> But I always get time out from outside. Checked with tcpdump at load 
> balancer:
>
> 10:10:08.966109 IP 202.87.24.5.33363 > 202.34.196.212.http: S 
> 3615203299:3615203299(0) win 5840 <mss 1460,sackOK,timestamp 7710594 
> 0,nop,wscale 2>
> 10:10:11.964080 IP 202.87.24.5.33363 > 202.34.196.212.http: S 
> 3615203299:3615203299(0) win 5840 <mss 1460,sackOK,timestamp 7713594 
> 0,nop,wscale 2>
> 10:10:17.963790 IP 202.87.24.5.33363 > 202.34.196.212.http: S 
> 3615203299:3615203299(0) win 5840 <mss 1460,sackOK,timestamp 7719594 
> 0,nop,wscale 2>
>
 From the tcp dump we can see that traffic comes into director but 
doesn't leave it. Try to reconfigure the virtual service with ipvsadm 
and use gatewaying to see if anything will leave director. The ip 
addresses of real servers don't need to exist on your network for this test.
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