RE: ADSL Modems

David Mill <maildave <at> inspire.net.nz> wrote:

>Basically this second diagram does some cool kinda transparent bridging. For
>non DSL connections, firewalls like a Netscreen 5XP support this
>wonderfully. As far as I am aware, New Zealand and PPPoA (RFC 2364) does NOT
>support this, and it should not work. However, I would love for someone to
>prove me wrong. Other ADSL protocols, like PPPoE (and some other
>implementations of PPPoA?) do have support for transparent bridging.

PPPoA allows this if you terminate the PPP session on the host you want to
have the external IP on. The 3com Homeconnect does this by turning the PPPoA
on the ADSL line into PPPoE packets on your ethernet, which you then terminate
at your convienience. Most of the other modems mentioned (Alcatel Home, Nokia
M1122) do the same thing but use PPTP as the modem - host protocol.

For obvious reasons all internal modems provide this because the host computer
effectivly is the modem.

--
Tom Parker - tom <at> carrott.org
           - http://www.carrott.org

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