Convert a 2524 to accept 3 DSLs and put over 10/100bT

[freyathurell]

I have a 2524 and a 1720. I need to convert, mod, etc. one or the other (or both) to accept 3 DSL lines input and output to 10/100baseT ethernet... is this possible? If SO, what is it I need to do?!!!

If NOT, what is it I need to make this possible. It isn't an option. The city we're making a network for requires the 3 DSL inputs and the 10/100baseT output. The 1720 has a nice 10/100 switched card that does intelligent detect and switching, but I don't think it can handle that kind of bandwidth. 3 DSLs is a BIG deal ...

so... if anyone has any help, please????

Freya Thurell...

 

[wybnormal]

Lets think about this for a second.. 3 DSL.. at best 1.5 Mbps.. more then likely 1 meg or under with a dose of reality. You *MAY* get more then 1 but I have not seen it work around here and even then you will pay dearly for it.

So lets use 1.5Mbps as the starting point. Each Ethernet interface is worth at least 10Mbps.. so you are using only a tenth of the bandwidth of the port.

You could use 3 ports.. But, I have an idea for you.. I did this at a clients site..

Each DSL circuit will have its OWN IP subnet end point, yes? Feed all three into a hub .. take the hub and feed it into the routers ethernet port. Use subinterfaces on the ethernet port to break out the 3 DSL IPs. Use an access list to block the other IPs from each interface if you are really paranoid. Now you can use policy routing, static routes etc or whatever to direct them where they need to go.

Just a thought

MikeS
"Diplomacy; the art of saying 'nice doggie' till you can find a rock" Wynn Catlin

 

[RouterGod]

Mike, you should formalize your suggestion into an FAQ. i.e. How to Multiplex DSL Lines. Such a scenario is common in ISDN (BRI) lines, why not DSL??

Again, just a thought ;-) Regards,

Don

 

[wybnormal]

Don-

I'll do that in the next few days.. I have other irons in the fire right now that I need to take care of

MikeS
"Diplomacy; the art of saying 'nice doggie' till you can find a rock" Wynn Catlin

 

[Koji]

FYI, a single ADSL line, 1.5Mbps max bandwidth costs about $40 Canadian here in Toronto. However most ISP's will give significant deals on multiple lines. This makes it an ideal challenger to ISDN or fractional T-1's. I'm personally trying to push multiplexing DSL for small clients as an affordable alternative!