Ethereal-dev: Re: [Ethereal-dev] Re: question on TLV

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From: Patrick Klos <patrick@xxxxxxxx>
Date: Tue, 13 Sep 2005 19:04:58 GMT
>the problem is that given a specific case where it is supposed to work, the
>incumbent data collector also does the same thing..............
>
>it willingly accepts 8 bytes for 6 .

According to page 4 of RFC2124 (LFAP):

   IE fields consist of 2-octet TYPE, 2-octet LENGTH and a variable
   length VALUE sub-fields. All IEs are even multiples of 4 octets in
   length, left-aligned and zero filled if necessary. Length is computed
   excluding the 4 octet TYPE and LENGTH fields.

This indicates that all information elements (IEs) are explicitly multiples
of 4 octets for this protocol.  This sounds like what you're seeing.

Patrick
========= For LAN/WAN Protocol Analysis, check out PacketView Pro! =========
    Patrick Klos                           Email: patrick@xxxxxxxx
    Network/Embedded Software Engineer     Web:   http://www.klos.com/
    Klos Technologies, Inc.                Phone: 603-471-2547
==== I don't think infinity is as big as it seems - P.Klos, 20-Mar-2005 ====