Craig Skinner wrote:
On Mon, Aug 14, 2006 at 10:48:55PM -0400, Chris Zakelj wrote:
  PPPoA is in some ways, preferable, since you don't have the MTU
issue of PPPoE.
Much better.
It is helpful to include such details ;)

  I didn't think it was important, since I wasn't asking for help. I'm just 
saying, I use
a Sangoma card, and I've gotten it sort of working. I'll supply more info when 
I have real
success to report.

 At the office where I worked
roughly three years ago, we had a setup where the external modem handled
all the PPPoA aspects, but transparently handed off the public IP
address and forwarded all ports to the oBSD firewall I had set up. Unfortunately, I forget the name of the company that made it, but it did
work quite well, and didn't require any kind of extra configuration on
the firewall itself.  How it did that, though, I haven't a clue.
I used to have a DLink 300T that done this, think it was some sort of
"half-bridge", if there is such a thing. The routable WAN IP was passed
though to the NIC, but I could still telnet/web to it on a private
address from the same NIC - all done with DHCP.

  I've heard of devices that do this. I had been using a Cisco 678, which, 
while it's a
good piece of gear, it doesn't do half-bridging, and I also ran into a lot of 
weirdness
from having another "black box" network device in the data stream. I resolved 
to try to
minimize the amount of closed-source magic that was involved in my network. Too 
many
issues were difficult to troubleshoot and resolve because we couldn't peek 
inside what the
black box was doing, so I wanted to get away from those types of architectures. 
Having an
extra hop like that also makes it more difficult to do traffic shaping, which 
is one of my
primary requirements.

  If I can get the Sangoma card working 100%, it should be the best possible
configuration as far as transparency and control goes. More news as events 
warrant.

--
     Chris 'Xenon' Hanson | Xenon @ 3D Nature | http://www.3DNature.com/
 "I set the wheels in motion, turn up all the machines, activate the programs,
  and run behind the scenes. I set the clouds in motion, turn up light and 
sound,
  activate the window, and watch the world go 'round." -Prime Mover, Rush.

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