It's worth noting that if you're behind a routed network (router, NAT, etc), the IP you'll see with ipconfig is your LAN IP in a private address range (eg. 10.x.x.x, 192.168.x.x). To see the WAN IP (the IP that others will see on the internet), I usually just take a quick visit to http://www.showmyip.com.
While we are on the subject of IP's this sort of relates. Although I need to ask this question first before I go on.
Does anyone here have Comcast cable internet?
Well I guess I can take it a step further.
If so, do you have a static IP or a dynamic IP? If dynamic, is it free, or do you have to pay extra for it?
I ask this because I was under the assumption that when I signed up, that at least one computer would have a dynamic IP. I dont believe that any computer in my house (3) has a dynamic IP. I want the ability to change my IP as I see fit if it is possible for me to do so. I know it is physically possible. I just think that I do not have the ability to do so.
Comcast (at least in my parts) assigns a static IP per MAC address (in your case, the MAC of your router). If you feel the urge to change your IP, head into your friendly neighborhood router web-interface, and... somewhere in there, I forget where, there's an option called MAC Clone (basic MAC spoofing). Change the MAC to anything other than what it is now.
Reset the defaults on your modem (try 192.168.100.1), and then power-cycle the modem and your router.
Yeah I know, pain in the ass, but it's the only way I know of how to do it with Comcast. I for one enjoy having a static IP.
Strange, my ISP only gives out dynamic Ip's unless specifically stated.
There are basically a number of IP assigned to an area on the one connection, and everytime I connect, it assigns any of the ones that are free to me.
I can set it manually by merely going into my IP settings and chaning it from DHCP to static, and entering it there. I cant just chose any old IP though, it would have to be one from the sub domain that would be normally assigned to me,. So if I take a note of which IP I have now, I could then set that manually as static, and everytime I connect I would have that same IP address.
I'm sure this might actually only work if my PC was left connected though, as when I disconnect, that IP would become free, and therefore could be assigned to any other PC in the same sub domain with my ISP. So not really worth it IMO (as even though I've set it, I might not always get that IP)
Lancool PC K62
Phenom II x3 @ 3.5Ghz
ASUS GTX570 DirectCU II
I have a dynamic IP, but it only changes a few times a year. Even if the power goes out, I have the same IP. (On Insight) I had BrightHouse (wich is very similar to Comcast) and had the same situation, but it changed every month or so.
If yo uhave 3 computers setup, they'd be on a router, so they would all have internal, assignable IP address that you could change easily. Your router would have 2 IP's, one external (the internet) and your internal (192.168.*.*).