Re: [lwip-users] http client causes server to stop sending data

[Chris Frost]

On Mon, Jan 10, 2005 at 01:17:33PM +0000, Kieran Mansley wrote:
> Frame 92 looks a bit suspect: it's from 192.168.2.1 which is an address
> that hasn't featured before.  It causes a RST to be sent, which will
> terminate the connection.  If you can work out where that comes from,
> you'll probably solve your problem.

192.168.2.1 is the computer on the other end of the lwip machine's slip
connection, running linux and iptables doing nat.

> It also sends a number of duplicate acknowledgements (frames 95, 97, and
> 99 are duplicates of 93) despite all the data being in the correct order
> and none is lost.  What's also odd is that the other end doesn't do a
> fast retransmit as a result of these duplicate acknowledgements.
> 
> It finally grinds to a halt because 192.168.2.2 thinks its missing a
> packet (115 is the one its complaining is missing), but the
> 68.62.194.163 machine refuses to retransmit it.
> 
> Doesn't solve your problem, but might provide some hints about where to
> look!

Thanks for these explanations! (Hm...)

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Chris Frost  |  <http://www.frostnet.net/chris/>
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