Firebox x20-e, PPPoE, and seconday addresses

Firebox x20-e, PPPoE, and seconday addresses

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Firebox x20-e, PPPoE, and seconday addresses Matt Hickman 03-02-2008
Posted by Matt Hickman on March 2, 2008, 9:41 am
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Is there some sort of setting somewhere on the Firebox x20-e that
allows one to configure secondary IP addresses when it is a PPPoE
client?

I have a DSL package from my ISP (AT&T) that gives me 5 static IP
adresses. However, when I set up the X20-e (v10.0) as a PPPoE client,
the option to enable secondary addresses is greyed out. My guess is
that the developers of the X20-e assume that because PPPoE only gives
you an IP address when you logon to an account, it is inherently
dynamic addressing. And us sods should therefore be prevented from
enabling any secondary addresses -- 'cause who knows when those
dynamic addresses may change?

Thanks for any help on this.

--
Matt Hickman
...the People operate out where the pickings are rich,
police protection non-existent, and a man can dicker without
being hampered by finicky regulations.
- Robert A. Heinlein _Citizen of the Galaxy_

Posted by Matt Hickman on March 3, 2008, 8:46 am
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> Is there some sort of setting somewhere on the Firebox x20-e that
> allows one to configure secondary IP addresses when it is a PPPoE
> client?

I did find this document for our Netopia DSL modem:
http://www.netopia.com/support/hardware/technotes/CQG_042.html
that explains how to set up the DSL router as a non-NATed gateway,
allowing an unblocked, routed subnet locally.
This lets me to set up the Firebox X20-e manually and assign secondary
addresses. And bypasses the need to configure secondary IP addresses
if the X20-e is a PPPoE client.

--
Matt Hickman
The problem could not be solved in any reasonable length of time
without
machine calculation. However, Matt could set it up and then, with
luck.
sweet talk the officer in charge of the Base's computation room
into
letting him use a ballistic integrator.
Robert A. Heinlein (1907 - 1988)
_Space Cadet_ c. 1948

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