Ethereal-dev: Re: [Ethereal-dev] Invalid LAPB frames

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From: Guy Harris <guy@xxxxxxxxxxxx>
Date: Mon, 10 Nov 2003 12:26:04 -0800
On Nov 10, 2003, at 7:17 AM, RADHIKA LAHANKAR, BLOOMBERG/ 499 PARK wrote:
I am trying to sniff the traffic on some routers. But ethereal is not able to 
display the frames correctly. It says
DCE(Source) DTE (Destination) LAPB (protocol) and Invalid LAPB frame (Info). 
What's the matter?
What application are you using to capture the traffic? (I doubt it's Ethereal, as Ethereal only displays as LAPB frames packets that are reported by Ethereal's capture-file-reading code as LAPB, and it doesn't report *any* frames as LAPB if it's reading libpcap files, which are files in Ethereal's natural format, and that's the format Ethereal writes stuff out in when capturing).