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Newsgroups: mail-lists.delegate-en

[DeleGate-En] Re: delegate: mixed up window sizes
30 Jun 2005 12:40:34 GMT "Benjamin Schweizer; dsb AG" <>


Yutaka Sato wrote:

>In message <_A2991@delegate-en.ML_> on 06/30/05(19:03:04)
>you "Benjamin Schweizer; dsb AG" <> wrote:
> |> I've experienced some strange problems with the handling of the tcp 
> |> window size in delegate. By now, I was not able to debug it, I just 
> |> want to ask if other users have reported similar problems. It looks as 
> |> if the packets get fragmented in a wrong way which makes my Checkpoint 
> |> reject them. I'm currently using 8.11.3 but I had similar problems 
> |> with 8.9.1.
> |>
> |> addendum: I'm just analysing the code which is rather complex. I 
> |> assume that this is a bug in the ftp handler which is called via xinetd.
>Is this the problem in DeleGate as a FTP-proxy?
Yes, Im talking about the 'specialist'.

> |I've some more results:
> |- the banner message get's fragmented on some connections (this is a 
> |kernel issue, may be some special socket options?)
>Is it a banner meesage from a FTP server relayed by DeleGate ?
No, It's delegate's welcome message 

As I've mentioned before, I'm not sure what the bug is. Two different 
firewalls that reject, a strange socket setup or a slightly different 
understanding of the protocol. I'll check this, the next days.


*Benjamin Schweizer* | dsb AG

phone +49 7000 000-000f | fax +49 7000 000-000f
Konrad-Zuse-Strasse 16 | D-74172 Neckarsulm

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