Ethereal-users: RE: [Ethereal-users] Why Tethereal can not print protocol tree of H245/RTP/RTCP

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From: "Deng, Luke Hao (Luke)" <luked@xxxxxxxxxx>
Date: Fri, 1 Aug 2003 17:50:13 +0800
Yes. In ethereal, protocol tree of frame 22 is printed very well.

-----Original Message-----
From: Guy Harris [mailto:guy@xxxxxxxxxxxx]
Sent: 2003?8?1? 9:52
To: Deng, Luke Hao (Luke)
Cc: ethereal-users@xxxxxxxxxxxx
Subject: Re: [Ethereal-users] Why Tethereal can not print protocol tree of H245/RTP/RTCP



On Thursday, July 31, 2003, at 6:05 PM, Deng, Luke Hao (Luke) wrote:

> I tried without "-R h245" flag and with "-V" flag. It can print the 
> protocol tree of other packets, including H.225RAS and H225Q931. But 
> for H245, it shows Data(XX bytes) like below.

That means that, for some reason, it's not recognizing the packet as 
H.245 when "tethereal -V" is run - but it *is* recognizing it as such 
when Tethereal is run without "-V".

If that's because, for some reason, it fails to recognize it as H.245 
when building a protocol tree, that would explain why "-R h245" isn't 
working - read filters work on the protocol tree, and that read filter 
matches packets where the protocol tree includes a protocol tree item 
for H.245, and if it's not recognizing packets as H.245 when building 
the protocol tree, there won't be an item for H.245 in the protocol 
tree.

Does Ethereal show the protocol tree of H.245 for packet 22?