Problems with IPVS
Joseph Mack NA3T
jmack at wm7d.net
Tue Oct 17 13:48:28 BST 2006
On Tue, 17 Oct 2006, Mindaugas wrote:
>> Web clients are Sony Ericsson phones so I cannot upgrade all of them. :)
Do you know if this is a problem with the phone or ipvs
(does it work with a regular client)?
> I investigated a bit further and that's what I found:
> 1. phone sends SYN packet to proxy;
> 2. proxy responds with SYN,ACK;
> 3. phone sends ACK;
> 4. phone sends HTTP GET request;
> 5. proxy ACKs packet 4;
> 6. proxy sends HTTP data packet;
> 7. proxy sends another HTTP data packet;
> 8. proxy sends FIN packet;
> weird things starts here
> 9. phone once more sends ACK packet acknowledging packet 2 (duplicate of
> packet 3);
> 10. and one more dupe of packet 3;
> 11.-14. proxy repeats packet 6. 4 times.
> The problem is that LVS does not pass packets 11. to 14. to phone. Why?
this is out of my league sorry
> In case of DNAT packets 11.-14. are passed to phone which at the end
> acknowledges packets 6. and 7. and then acknowledges packet 8. thus closing
> TCP connection.
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Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
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