Re: layer 2 and layer 3 tunneling
Rich_Shea@BayNetworks.COM (Rich Shea) Wed, 10 February 1999 23:46 UTC
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Date: Wed, 10 Feb 1999 16:12:21 -0500
To: "Eren, Evren" <Evren_Eren@BONN.DETECON.DE>, ipsec@tis.com
From: Rich_Shea@BayNetworks.COM
Subject: Re: layer 2 and layer 3 tunneling
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At 09:32 PM 2/10/99 +0100, Eren, Evren wrote: >I know, that I am in the wrong area, but I would be grateful if anybody can >recommend good references >for layer 2 and layer 3 tunneling ? > >My understanding is the following: > >PPTP and L2F are Layer 3 tunneling protocols. They directly encapsulate IPX, >IP etc. > >L2TP is a Layer 2 tunneling protocol. It encapsulates PPP, which can >encapsulate IPX, IP etc. > PPTP, L2F, and L2TP all encapsulate PPP and so are all layer 2 tunneling. L2F is an informational draft (don't have the number off hand). PPTP was last at draft-ietf-pppext-pptp-04.txt and L2TP is at draft-ietf-pppext-l2tp-12.txt. The PPPEXT WG mailing list (or L2TP mailing list) is the right area for questions about these. The IETF web page has information on the mailing list for PPPEXT and L2TP mailing lists (I haven't looked if the web page has been updated, but the l2tp list recently changed from l2tp@zendo.com to l2tp@ietf.org). Richard. -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Richard Shea, Principal Engineer rshea@BayNetworks.com Nortel Networks / Extranet Access 978-635-2019
- layer 2 and layer 3 tunneling Eren, Evren
- Re: layer 2 and layer 3 tunneling Rich Shea
- Re: layer 2 and layer 3 tunneling Motonori Shindo
- Re: layer 2 and layer 3 tunneling Motonori Shindo