Home |
Search |
Today's Posts |
#21
|
|||
|
|||
Dennis Ferguson wrote: Frank Dresser wrote: "Dennis Ferguson" wrote in message ... Note that this is not a unique attribute, it is about the same situation as that which exists for broadband Internet service via cable modems. I assume that BPL would use the same protection techniques (mostly depending on control of the receiving equipment, I think). This seems to mostly work, I very seldom hear complaints about the security of people's cable connections. Yeah, I'm almost totally ignorant on this one. I sorta assumed the cable companies set aside some bandwidth for internet access, and trapped it out for non-internet cable subscribers. No, there's no traps for non-Internet cable subscribers. This is why you can sometimes go to Best Buy, buy a cable modem, plug it in and then call the cable company to program it on. Everything to everyone in your neighbourhood is sent through one or more (unused for TV) television channels, the cable modem gets it all, picks out those packets which are addressed to you and discards the rest. This is `secure' only because the configuration and operation of the modems is controlled entirely by the operator on the RF side of the modem. There is a standard called DOCSIS which the modems must conform to which standardizes the configuration interface and is intended to minimize the possibility that the user can fiddle with any of it. This seems to work well enough (and maybe the idea of watching your neighbours' Internet traffic is boring enough?) that I haven't heard of people hacking the modems the way they do digital cable and DBS receivers, though who knows? In any case, I think whatever permits cable operators to sell their service will work equally well for BPL since the situations are exceedingly similar. Dennis Ferguson Sending data over power lines at RF frequencies is a bad idea unless power companies want to retrofit their lines with grounded shielding. If the situations are so similar, let's send our power through the tv cable! Tom |
#22
|
|||
|
|||
Try telling that to Charter Communications. Locally we have had some areas
where, if I remember correctly, RFI from their system on 145.250. They basically said something to the effect of "It's not our problem, we have other problems to deal with at this time." Consumers Energy, the electrical supplier in this part of Michigan is also in clear need of doing something with thier power lines, and other equipment. In some areas, it is so bad that even VHF/UHF operation is drastically affected. These two problems plus BPL would almost make operation not worth the effort around here!!!!!! -- Ryan, KC8PMX FF1-FF2-MFR-(pending NREMT-B!) --. --- -.. ... .- -. --. . .-.. ... .- .-. . ..-. .. .-. . ..-. ... --. .... - . .-. ... Cable connections are shielded. If signals "leak out," the cable company is required to fix it. Dee D. Flint, N8UZE |
#23
|
|||
|
|||
Hell, people are already "war chalking" in similar form with wireless
networking. I have even seen a device being sold in the last Sunday newpaper, from one of the major retailers, a device for detecting wireless network access points, and it was only in the $20-30 price range. Almost like it is encouraging the practice. -- Ryan, KC8PMX FF1-FF2-MFR-(pending NREMT-B!) --. --- -.. ... .- -. --. . .-.. ... .- .-. . ..-. .. .-. . ..-. ... --. .... - . .-. ... Beside the obvious privacy issue, I've been wondering if BPL will be another security burden on the whole internet. It looks like it might be a code cracker's playground, what with the network going all around, to the every outlet in an area, to both subscribers and non subscribers. Could the truely malicious do their damage from a non-subscribing home? I don't know, I don't really know anything about networking. Frank Dresser This is something to consider. It might very well be possible if someone is clever enough. And sooner or later someone will be. Dee D. Flint, N8UZE |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Interesting question | CB | |||
Question Pool vs Book Larnin' | Policy | |||
transmitter question - its a dousy | Homebrew | |||
BPL Video On-Line | Policy | |||
Question regarding police tactics and scanners | Scanner |