Tom Diehl on 12 Aug 2012 04:44:55 -0700

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Re: [PLUG] race condition betwee modem and router

On Sat, 11 Aug 2012, Doug wrote:

Well I finally got my Comcast connection setup after a long debacle. I'll tell that story in a future post. Working fine - in the end they let me do self install. I ran a cable out the side of the house and they connected to it. Never came in the house. Even gave me the cable.  I am using a Motorola SB6121 that I purchase and connected to single computer, Ubuntu 12.04, !G lan rate I am getting 25D/4U rates. This is (supposedly) the lowest internet rate - 24.95/month  for 6 months and 49.95/month after that. I have no other Comcast services.

Ok hooked up a Buffalo Airstation router. I have been using it for years on DSL. I do not use the wireless on it. It is turned off. All is good. Router got a Comcast address. My computer is static in 192.168.0.x space. Can communicate fine.

The problem? is that there is constant data between the router and the modem. Both data lights blink continually. There is not data on the LAN while this is happening. I can even pull the LAN lines and I still see this constant data. I don't think I can http to the modem config page in this configuration.I would need to connect the computer directly to the modem. 

Any ideas on what might be going on?  I went over all the router settings and I don't see anything obvious.

It is the way cable works! You are seeing your neighbors traffic go by. Cable
is a shared connection unlike DSL or FiOS. All of the traffic in your node goes
through the same cable. That makes a really good argument for encrypting all



Tom Diehl      Spamtrap address
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