Wireshark-dev: Re: [Wireshark-dev] Fwd: Re: [0/7] [PPP]: Fix shared/cloned/non-linear skb bugs
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From: Toralf Förster <toralf.foerster@xxxxxx>
Date: Thu, 13 Sep 2007 11:31:06 +0200
Hi

>If by "wrong checksum" you mean wrong UDP checksum, then, when running over IPv4,
>the UDP checksum is optional - if a UDP packet has no checksum, the checksum
>field has the value 0x0000, and the receiving UDP implementation should not check the checksum.  
>
>That's probably independent of the "Long frame" issue; we'd have to see a
>capture file with one of those packets to see what's causing that issue. 


oh yes - the checksum is 0x00, therefore not a "wrong" checksum - my fault, sorry.

I'll attach 2 capture files, sniffed at ppp0 and eth0 containing such packets for further analysis.


-- 
MfG/Sincerely

Toralf Förster
pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3

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