Author Topic: Switching out modems  (Read 984 times)

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Offline lucid

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Switching out modems
« on: August 12, 2013, 09:15:22 pm »
Yes, I have completed a networking class recently. No, I will not stop asking networking questions.  When I first signed up for internet, they gave me one of those cheap little Motorola modems. You guys know the one I'm sure. Later, I obtained an identical one of my own. So today I went to switch them out because we are paying 7usd a month to rent out there modem and I want to use mine instead. Then I thought of something though. When they first set me up with internet the guy obviously had to dial in to the ISP with the modem. I'm assuming that the ISP uses the modem's MAC to identify it. If that's the case, I'm also assuming that I couldn't just switch out modems without having to do other things. Perhaps I would need to contact the ISP? Or is there something I could do on my side to get it to work?
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Offline proxx

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Re: Switching out modems
« Reply #1 on: August 12, 2013, 11:08:26 pm »
Im no expert on DSL technology but as far as I know (where I live) any modem can be used as long as it supports the protocols used.
Some of them use authentication of sorts , some dont.
But its not perse a security flaw because the most you will get out of it is just a internet connection like the one you pay for.
Speed trotteling used to be on the modem itself, but thats ancient history by now.
Some ppl messed with the firmware in those days, the ISP was wel aware of that :) and let them.
« Last Edit: August 12, 2013, 11:09:15 pm by proxx »
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Offline namespace7

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Re: Switching out modems
« Reply #2 on: August 12, 2013, 11:37:35 pm »
A lot companies do register mac addresses of the modem. What you should do is swap the modems and see if the net is still on. If it works great, if it doesn't, call your ISP and tell them that you will now use your modem to save money (be straight) and ask for instructions of how to register your modem with their network.
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Offline lucid

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Re: Switching out modems
« Reply #3 on: August 13, 2013, 04:58:16 am »
Yeah, that's actually what's going on. After switching the modems it said I was connected to the net but not the Internet. So I pinged the router and the modem. Both responded, so that leaves me to believe that it's the ISP. I must have to register it.

Shit. Ah well.
"Hacking is at least as much about ideas as about computers and technology. We use our skills to open doors that should never have been shut. We open these doors not only for our own benefit but for the benefit of others, too." - Brian the Hacker

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