Author: Bob Durrett
Date: 16:17:58 02/05/04
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On February 05, 2004 at 17:38:00, Russell Reagan wrote: >On February 05, 2004 at 15:56:19, Chessfun wrote: > >>AFAIK mine is also static. One thing Dr Hyatt wrote which was if you are behind >>a firewall it's hidden. I know that if I post at say the Rebel Board as was, my >>IP was always displayed correctly. Even though I use "Zone Alarm" as I'm sure >>many others do. > >I think Dr. Hyatt was talking about a NATed firewall, which is different than >something like Zone Alarm. For instance, at my house we have cable internet >connected to a router (little thing, looks like a hub), and we have four or five >computers with network cables plugged into that. One thing the router does >(among many others) is that to anyone on the internet, all of our family's >computers have the same IP address. The router sorts out the details and makes >sure the right data gets to the right computer at our house. This is >advantageous to us since we only have to pay for one IP address instead of four >or five. I do exactly the same thing, with three computers. For some reason, I get email DAILY which Norton Antivirus says has a virus [in the attachment]. I guess having a router/hub doesn't act as a firewall after all. Incidentally, my computer is the only one receiving the offending email messages. Since CCC is the only bulletin board I use and I do not use Usenet, I assume someone like "Swami" who uses CCC is sending those email messages, although that's not certain. Anyway, it is a daily ritual for me to delete all virus-infected email messages before doing anything else that day. Sadly, we cannot expect everyone to be Saints. Bob D. >Now imagine a company that "hides" hundreds or thousands of computers >behind one IP address. There's no way of knowing which one of the thousand >computers a message came from. > >>Also what is IP 127.0.0.1, I assume it's a blank IP but would CCC give you an ID >>using such an IP?. Naturally they could avoid that and only issue ID's to valid >>IP's. I'm probably getting over my head anyway as I know little about how you >>could fake an IP. > >127.0.0.1 is a reserved IP address, called the loopback address. Essentially it >is a way to refer to your own machine. It is useful for troubleshooting network >problems. If you can ping 127.0.0.1 successfully, then you know you're network >card is working at least, even if you can't connect to anything on the network.
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