IP addresses
Started by Bill, May 03 2008 01:08 PM
11 replies to this topic
#8
Posted 03 May 2008 - 05:03 PM
Computers behind a router will appear to have the same internet ip, this is why port forwarding is necessary to remotely access your computer when it is behind a network. So two computers could appear have the same ip, but they have different local ips behind a network (like 192.168.0.1 and 192.168.0.2)
#9
Posted 03 May 2008 - 05:15 PM
The 32 bit IP address is 100% the same for both posts. To my knowledge, it's not possible to communicate on the Internet with two different computers using the same IP address. Packets will get lost and plus a TCP connection is used for HTTP, making this issue very unlikely.
- Cameron
#11
Posted 05 May 2008 - 04:45 AM
Though I don't have all the facts of this situation, if two people are behind a NAT firewall/router, which many corporate and some residential (ie. Apartment complex with an internal network or perhaps a municipal WiFi system) networks utilize to allow many clients to use one internet connection, it is indeed possible that they would appear to have the same public IP address. Behind the firewall they would have a separate local network IP (assigned by IANA to the subnets 10.x.x.x, 172.16.x.x, or 192.168.x.x), that would be invisible to the outside world.
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