[Ethereal-users] A bit Offtopic: Ether Type 0x886d??

["Jesus M. Salvo Jr." <jsalvo@xxxxxxxxxxxxxxxxx>]

A bit offtopic, but ... I can't figure out what these ethernet packets 
are with ether type 0x886d, which is being shown on ethereal, with 46 
bytes of data.
The source is a MAC address of whatever host it was being sent from, 
while the destination is the broadcast address ff:ff:ff:ff:ff:ff.

There seems to be two hosts communicating with this ether type through 
broadcast. One seems to be sending the payload, and the other seems to 
be responding with the same payload .... then the data payload changes 
... etc .... Almost like an ICMP echo request and an ICMP echo reply.

I know 0x0800 is IP, but searching the RFC ( www.normos.org )... there 
does not seem to be an ether type 0x886d. The closest seems to be 0x8864 
which is for PPPoE session.

Anyone knows what it is?



Here is an example:



Frame 69 (60 on wire, 60 captured)
   Arrival Time: Feb  7, 2001 10:40:58.0219
   Time delta from previous packet: 1.312458 seconds
   Time relative to first packet: 58.933777 seconds
   Frame Number: 69
   Packet Length: 60 bytes
   Capture Length: 60 bytes
Ethernet II
   Destination: ff:ff:ff:ff:ff:ff (ff:ff:ff:ff:ff:ff)
   Source: 00:d0:b7:48:b5:b7 (00:d0:b7:48:b5:b7)
   Type: Unknown (0x886d)
Data (46 bytes)

  0  0001 0001 2372 0300 0200 00d0 b748 b5b7   ....#r.......H..
 10  0000 0000 0000 0000 0000 0000 0000 0000   ................
 20  0000 0000 0000 0000 0000 0000 0000        ..............

Frame 70 (60 on wire, 60 captured)
   Arrival Time: Feb  7, 2001 10:40:58.0219
   Time delta from previous packet: 0.000002 seconds
   Time relative to first packet: 58.933779 seconds
   Frame Number: 70
   Packet Length: 60 bytes
   Capture Length: 60 bytes
Ethernet II
   Destination: ff:ff:ff:ff:ff:ff (ff:ff:ff:ff:ff:ff)
   Source: 00:b0:d0:22:26:1b (00:b0:d0:22:26:1b)
   Type: Unknown (0x886d)
Data (46 bytes)

  0  0001 0001 2372 0300 0100 00d0 b748 b5b7   ....#r.......H..
 10  0000 0000 0000 0000 0000 0000 0000 0000   ................
 20  0000 0000 0000 0000 0000 0000 0000        ..............


John