Ethereal-dev: Re: SV: SV: [Ethereal-dev] [PATCH] Q.931 fails to pass long message toH.225

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From: Jaap Keuter <jaap.keuter@xxxxxxxxx>
Date: Thu, 17 Nov 2005 07:57:50 +0100 (CET)
Hi Anders,

I get the same result *but only when I switch off TCP checksum validation*
By default this option is enabled, which leads to the presentation I've
shown before. Any reason why?

Thanx,
Jaap

On Wed, 16 Nov 2005, Anders Broman wrote:

> Hi,
> And here's how it looks for me:
> I included my preference file if that's of any help.
> Brg
> Anders
> No.     Time        Source                Destination           Protocol
> Info
>       1 0.000000    130.139.45.128        192.168.18.4          TCP
> [TCP segment of a reassembled PDU]
>
> Frame 1 (1514 bytes on wire, 1514 bytes captured)
[SNIP]
> Transmission Control Protocol, Src Port: 2284 (2284), Dst Port: 2050 (2050),
> Seq: 2987062585, Ack: 830761, Len: 1460
>     Source port: 2284 (2284)
>     Destination port: 2050 (2050)
>     Sequence number: 2987062585
>     Next sequence number: 2987064045
>     Acknowledgement number: 830761
>     Header length: 20 bytes
>     Flags: 0x0010 (ACK)
>     Window size: 17520
>     Checksum: 0x8886 [validation disabled]        <<<<<<<{enable this}
>     Reassembled PDU in frame: 2
>     TCP segment data (1460 bytes)
>
> 0000  00 60 08 4d 38 b5 00 11 85 15 68 7b 08 00 45 00   .`.M8.....h{..E.
[SNIP]