I have a small home LAN. We currently use DSL but are moving to an area where cable internet is preferred for speed reasons (3Mbit upload vs. 768kbit).
I'm fairly savvy w.r.t. networking, but I have no experience with cable internet and am having a hard time translating Comcast's marketing-speak into something I can understand.
We currently have:
- Cisco 678 DSL router (connectivity and firewall), which connects by Ethernet to
- LinkSys WRT54GL router running stock firmware,
- connected by wired Ethernet to a one desktop
- connected by wifi to two laptops
Is there way to buy some cable modem and simply swap it in for the DSL router? (The firewall responsibilities can be transferred to the LinkSys, I think.)
Comcast has a list of approved modems.
Comcast will lease me a cable modem but doesn't say specifically what it will be, and they say it's for "1 computer". So I'm leery of this route.