Re: Compression issue - PPP over IrDA

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On Wed, Jun 18, 2003 at 10:12:03AM +0200, Jean-Francois Dive wrote:
> hello Jean,
> 
> Just for the EOL:
> EOL is a TCP option indicating that pad bytes were needed
> before the next option could start.
> 
> JeF

	Hum... I was more expecting that you would told me that the
packet is corrupted or something along those lines.
	I don't want to post the full tcpdumps to the mailing lists,
but here is a bit more context...

	On the sender :
---------------------------------------------------
14:33:13.711957 15.4.92.229.32792 > 15.4.91.45.32799: . 14481:15929(1448) ack 1 win 5840 <nop,nop,timestamp 8909250 7950342> (DF)
14:33:13.712596 15.4.92.229.32792 > 15.4.91.45.32799: . 15929:17377(1448) ack 1 win 5840 <nop,nop,timestamp 8909250 7950342> (DF)
14:33:13.736704 15.4.91.45.32799 > 15.4.92.229.32792: . ack 8689 win 23168 <nop,nop,timestamp 7950343 8909208> (DF)
14:33:13.736817 15.4.92.229.32792 > 15.4.91.45.32799: . 17377:18825(1448) ack 1 win 5840 <nop,nop,timestamp 8909275 7950343> (DF)
14:33:13.737496 15.4.92.229.32792 > 15.4.91.45.32799: P 18825:20273(1448) ack 1 win 5840 <nop,nop,timestamp 8909275 7950343> (DF)
---------------------------------------------------

	And on the receiver :
-----------------------------------------
14:33:13.798157 15.4.92.229.32792 > 15.4.91.45.32799: . 14481:15929(1448) ack 1 win 5840 <nop,nop,timestamp 8909250 7950342> (DF)
14:33:13.798334 15.4.92.229.32792 > 15.4.91.45.32799: . 15929:17377(1448) ack 1 win 5840 <nop,nop,timestamp 8909250 7950342> (DF)
14:33:13.798506 15.4.91.45.32799 > 15.4.92.229.32792: . ack 15929 win 37648 <nop,nop,timestamp 7950348 8909250> (DF)
14:33:13.798814 15.4.91.45.32799 > 15.4.92.229.32792: . ack 17377 win 40544 <nop,nop,timestamp 7950348 8909250> (DF)
14:33:13.808146 15.4.92.229.32792 > 15.4.91.45.32799: . 17377:18825(1448) ack 1 win 5840 <eol> (DF)
14:33:13.808310 15.4.92.229.32792 > 15.4.91.45.32799: P 18825:20273(1448) ack 1 win 5840 <eol> (DF)
-----------------------------------------

	I don't know enough about the VJ compressor to get a clue on
what type of issue we are facing, but clearly the received packets
looks like they are not correct.

	Thanks...

	Jean
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