Wireshark-bugs: [Wireshark-bugs] [Bug 12597] Export filtered displayed packets not saving SCTP f
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Thu, 21 Jul 2016 14:16:22 +0000

Comment # 5 on bug 12597 from 
(In reply to Jeff Morriss from comment #4)
> Just as a side note: this trace also indicates that there's something weird
> going on with the source of the frames I listed: it's not setting the IP DF
> (Don't Fragment) bit on any of its packets--even the small ones like
> HB_ACK's.
> 
> It would seem that the implementation is not trying to do path MTU
> discovery.  IIRC there was an ETSI specification that required turning off
> path MTU discovery but of course doing so requires setting the path MTU
> appropriately--IP fragmentation really shouldn't be used.
> 
> All that to say you might want to investigate that host.  It's not behaving
> well.

IP DF bit has anything to do with what we are seeing in wireshark ?

What I get from you earlier comment, is that recursively wireshark cannot find
out if any "depend upon" packet is there ?

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