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PPPoE is used for authentication. If you have a static IP, they know who has it and you don't need authentication. PPPoE would be the termination point for the address, but since it will reside on your firewall, the modem needs to bridge the dsl network
to the Ethernet network on the public side if the firewall
They give you a /24 because they'd be burning up more IPv4 addresses giving you a smaller subnet. Other static IP customers use addresses in that subnet along with you.
Jamie Montgomery | Comporium
Network Facilities Engineering | Engineering Associate II
www.comporium.com
jamie.montgomery@xxxxxxxxxxxxx
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No, the DSL modem is bridging, not routing. I've been assigned two static IPs (although they've given me a /24 net mask!!!) and my firewall is assigned one of them. The firewall is connected directly to the DSL modem by Cat6 patch cable. The other IP
is unused (I use it for testing VPN configurations).
I'm not sure but since the Broadxent Briteport is a PPPoE modem, I assume PPPoE. But the tech says that's not correct (WTF?). And he can't explain what they use. Sigh.
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