Ethereal-dev: [ethereal-dev] unable to trace ppp on linux

Note: This archive is from the project's previous web site, ethereal.com. This list is no longer active.

Date: Thu, 07 Sep 2000 00:12:57 -0500
OS: Linux 2.2.13
DIST: Slackware 7.0
PLATFORM: intel Pentium

ethereal vers: 0.8.11 Compiled with GTK+ 1.2.7, libcap 0.5.2

Problem:
    I wanted to use ethereal to diagnose and observe traffic on my 
    ppp connection.  

    libpcap.a:pcap-linux.c sets the linktype of *_PPP to DLT_RAW
    wiretap/libpcap.c doesn't support DLT_RAW, as according to the 
	comments BSD doesn't use this interface.

    I ran a capture with ``tcpdump -w'', and wiretap/radcom.c
    reports:
	Message: pcap: network type 101 unknown or unsupported

    Without diving into the code more, I don't know if it is easier/better
    to fix this in libpcap or ethereal.  

    Any advice would be appreciated.

    Note: this same version works on an ethernet capable system

Attached: tcpdump file

--
Rich Coe		richard.coe@xxxxxxxxxx
General Electric Medical Systems

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