On Sunday 19 December 2010 21:35:57 Dale wrote: > Peter Humphrey wrote: > > On Sunday 19 December 2010 13:17:51 Dale wrote: > >> I found a how to. I read it. This is what I got out of it. It > >> sounds like I need to let the modem use DHCP with the phone company. > > > > Correct. > > > >> Then I need to set the ethernet that comes toward the router to say > >> 192.168.1.2 then set the router to 192.168.1.5 or something to come > >> to my puter. > > > > Those two addresses must be on the same network segment, but they aren't > > - you have your router in between (it routes traffic between one network > > segment and the other). The side of the router that's connected to the > > modem can have that address, but the side that's connected to your > > computers can't have 192.168.1.X. Try 192.168.2.1, say, and your > > computers 192.168.2.2, 192.168.2.3, ... > > > >> Best I can figure, no two can have the same IP. Each device has two > >> IPs, one coming in, one going out. > > > > Yes, each address belongs to an interface, not to a computer, modem etc. > > Think of it as the address of one end of a piece of wire. > > > >> I think the how to may have made this worse. :-( > > > > Nah - sounds to me like you're getting there... :-) > > Ohhhh. Light bulb moment here, I think. The modem has a network, even > tho it only has one device connected to it. The router has its own > network but can have 4 devices connected to it. So, if the modem has > 192.168.1.1 >255 then the router needs 192.168.2.1 >255 which is two > separate networks.
If I follow you correctly, then yes > So, if that is true, set the modem to 192.168.1.1 for its IP. Then set > the router to to 192.168.2.1 for it's network. That would give my puter > a IP and the second puter another IP and they can talk to each other > since they are on the same network. Is my light bulb OK so far? If I follow you correctly, then yes In schema form: INTERNET --- <DHCP from ISP> [Modem] <192.168.1.1>---<192.168.1.2> [ROUTER] <192.168.2.1> ----- (Other PCs = 192.168.2.2...192.168.2.254) (Above should have been a single line) > By the way, I feel asleep watching TV, missed my show too. The internet > was still up when I got up. I think that setting on the modem got > changed during a reset, upgrade on its software or something. It > updates software automatically. Always usefull :/ Btw, if you use ADSL, an ADSL Modem/Router combination might be easier to maintain as then you have the Internet-address and LAN network done correctly with default settings. Or, if your Modem supports it, set it to "bridge" mode so your Router thinks it's connected directly to the ISP -- Joost
