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June 15th, 2004 11:00
Dynamic IP Addresses with ISP(Comcast)
Recently Comcast came out with an edict that if you are using more than one dynamic IP address with your Comcast internet account you must let them know so they can charge you additional fees per month.
We have two Dell desktops (upstairs/downstairs). The upstairs Dell is where the cable modem and Dell TrueMobile 1180 router are located. The downstairs Dell "talks" to the router wirelessly. Until now we have been able to access our ISP (Comcast) from both systems. Now only one system can get to the Internet.
Indications from Comcast are that if you have a router you should be o.k. My feeling is that the router may not be configured correctly NOW that Comcast has "cracked down" on IP addresses.
I am looking for any router/networking configuration / troubleshooting tips to allow both Dell systems to access our ISP.
Any suggestions are welcomed. Thanks!
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jmwills
2 Intern
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12K Posts
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June 15th, 2004 12:00
One possible work around for this would be to supply Comcast with the MAC Address of the router instead of the NIC from the main computer. There is no way for Comcast to determine how many systems are running behind the router (to the best of my knowledge).
In my opinion, you are paying for bandwidth, not IP Addresses but supply them with the MAC Address of the router if they crack down.
mattcowger
2.6K Posts
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June 15th, 2004 16:00
jmwillis: There have been some demonstrations by some german research groups showing that they can detect approx. how many different machines are behind a router if those machines are running a windows variant.
jmwills
2 Intern
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12K Posts
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June 15th, 2004 17:00
True, but I don't think Comcast has neither the time nor the resources to do this. They are looking for low hanging fruit, i.e., the ones that are willing to cough up the extra money, no questions asked.
Stick with the router and don't worry.
mattcowger
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June 15th, 2004 18:00