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Discussion Starter · #4 ·
I found the second article very interesting and would be fun to play with ...

but ...

The first article states,
How to Un-Cap a Cable or DSL Modem
"Cap" is a reference to an artificial limit on downstream and/or upstream speeds. Such caps are common on consumer-grade service. "Un-capping" is thus an attempt to remove such limits (and thereby increase speed).

However, un-capping is an urban legend (or hoax, take your pick) -- subscribers cannot un-cap cable or DSL modems:

Cable Modem speeds are controlled by the CMTS (head-end box for Cable Internet)
DSL speeds are controlled by the DSLAM (head-end box for DSL)
(Note that if you did somehow find a way to do it, that might be construed as theft of service, with unpleasant consequences.)
I don't have any experience with CMTS or DSLAM but I do with LAN and WAN switching and routing. I would guess that it is much easier to "throttle" a connection on the Provider/DCE side of the connection than it is on the Customer/CPE/DTE side - simply not having to transfer config files and such. Also, by controlling it on the provider side, it wouldn't be as suceptible to "hacking" as article 2 illustrates.
 
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