On 13 Nov 2009, at 15:57, Darrick Hartman wrote:

> Tom,
> 
> You'll need to tell us what VPN is being used.  Several VPN's can use 
> certificates to authenticate.
> 
> How does PPPoA differ from PPPoE?
> 
> Darrick
> 
> Tom Chadwin wrote:
>> Anyone thought about these?
>> 
>> Tom
>> 
>> 
>> On Wed, Nov 11, 2009 at 10:08 AM, Tom Chadwin
>> <[email protected]> wrote:
>>> 
>>> First request: PPPoA - is this possible in software? Most ADSL in the
>>> UK is PPPoA, so I have to have routers as well as Astlinux boxes. Or
>>> am I looking at hardware for this?

It is impossible to do PPPoA in software as the physical interface is Ethernet 
and there is no such thing as a modem that has a physical ATM interface. All 
ADSL Modems and Routers use PPPoA to connect to the WAN interface and in the 
case of Ethernet routers simply provide an IP address using DHCP.

If however you want to avoid the NAT included in an ADSL router you can use 
something like the X-Modem M3 that will forward the external IP address to the 
Astlinux box.


Darren
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