Quickie Lesson on DSL setups:
DSL, or Digital Subscriber Line, is a last-mile technology. Oddly enough T-1 lines in the US use a very similar, but more robust, technology in many cases. The actual DSL part, and the only thing the DSL modem does, is function the same as a network card but for DSL instead of Ethernet. The actual DSL part is only between points A and B, usually Customer Premises and Telco Central Office.
RFC1483 only comes in because most DSL providers use ATM circuits to connect from the hundreds of Central Offices where their equipment resides back to either their own internet connections, or to an ATM circuit for the ISP that you ordered service to.
Note, both the ATM and the DSL portions of this setup are entirely done transparently; you'll never see or have to deal with anything other than "Is my line up".
The Speedstream 5660 is a DSL bridge, meaning it passes anything that it receives on one port and passes it to the other port. It's completely transparent. In fact, it's really just a glorified DSL-to-Ethernet converter. It has absolutely no routing functions, and if it has an IP address at all - which I highly doubt - then you wouldn't be able to access it as it's set up for Technician access only, and therefore probably on the WAN side. It is NOT your WAN IP address, that gets passed to the WAN side of your Bering box.
To make an already long story short, you got told a bunch of information that you didn't need to know and got confused. RFC1483 has nothing to do with what you're looking at, and is totally transparent, and the Speedstream is only a bridge, which is also totally transparent. PPPoE is simply a means to assign an IP address to a host dynamically, as well as enabling certain bandwidth controls on the ISP side. DHCP serves the same function IP-wise, as does a static IP address.
I recommend calling your ISP and asking them how you will be assigned an IP Address; that should tell you all you'll need to know to get it set up and running.
George - who spent far too much time fixing DSL at one point. :)
Lars Karlslund wrote:
Hi,
I want to do a setup with my Bering box on a site in Spain, which has the following characteristics:
- The line is running RFC1483 LCC encapsulation with a fixed IP-address - The router is a SpeedStream 5660
I thought the line ran PPPoE with authentication, but it seems it runs RFC1483 (is that a variant of PPPoE or is that just a synonym?)
The setup can be configured so far that the SpeedStream acts as a bridge and does the RFC1483 encapsulation to the ADSL line. The SpeedStream's WAN port then has the external IP address. But I need my Bering box to have that address - but two units can't share the same address?
Pointers would be appreciated.
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