Sharing your cable modem. (capital currents).

CED, January, 2002 by Krauss, Jeffrey

My colleague, Leslie Ellis, recently wrote about my neighbor hypothetically stealing my cable modem service after I install a wireless home network. (See "The CAT and the NAT," CED, November 2001.) But here's a different take on wireless networking: why not share the Internet access voluntarily and split the cost, or even more radical, resell it for a profit!

Security

You might infer from Leslie's article that sharing a cable modem over a home network is somehow against the rules. Not so. But even if cable operators were to make such a rule, they would not be able to enforce it, because most home network routers contain firewalls. A firewall is important to protect a home network against harm caused by malicious intrusion through the Internet. The...

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