What is DHCP server IP anyway??? I woke up this morning, and my lapap wont connect unless i disable WPA security, and I can't setup security on it...what's wrong??
2007-07-22 03:05:01 · 3 answers · asked by Gary T 1 in Computers & Internet ➔ Computer Networking
DHCP = dynamic host configuration protocol.
Every device (router/printer/pc etc..) on your network needs to have a unique IP address.
The DHCP server - serves out the IP addresses. Along with other information, such the DNS server address that your PC needs to communicate on the Internet. When your PC boots up it has no IP address (assuming that it's configured to dynamically get it's IP address, which is the default). Your PC sends out a DHCP request, DHCP server responds with the info the PC needs.
Did you try rebooting the router?
2007-07-22 03:11:48 · answer #1 · answered by Fester Frump 7 · 0⤊ 0⤋
Yes, your IP has to be different than the DHCP server, and any other computer on your network for that matter.
A DHCP (Dynamic Host Configuration Protocol) server is a server that configures the IP addressing on a network. This makes it easier than manually assigning IP addresses across large networks. You need to have an IP address to connect to the default gateway on your network, which in turn sends you to the internet. To get that IP address, your laptop will search for one from the DHCP server while it is booting up.
As far as the security question, it sounds like you are probably not getting to your wireless router at all, and turning off WPA is getting you to someone else's network possibly. Or maybe your router got reset, and lost its configuration. I would go to another PC that you have connected to the router with a wire, or connect your laptop to it with a wire, and check the configuration of it.
2007-07-22 10:14:06 · answer #2 · answered by teepeetop 4 · 0⤊ 0⤋
Yes, the router will have a different IP number than your PC. Typically, a router will have an IP number preset, e.g. 192.168.1.1. Then it will provide IP numbers to any PC on the network so that it is in the same 'network'.
Without complicating things, this simply means that the first three numbers in the IP address stay the same, but the final number (which can be anything from 1 tro 254) can be changed.
The router will 'listen' to the network for any new PC that is asking for an address, and 'answer' with an IP number within the network that hasn't been used yet. The router keeps track of what numbers it has issued.
Most routers allow you to modify the network and the range of numbers it will distribute.
One final thing -- your router actually has TWO networks -- the one for your local PC's, and the one which connects to the internet through your ISP. For the LAN, DHCP is used for the Router to supply addresses to your PC's. For the WAN, your router uses DHCP to request an address from you ISP (or in some cases, your ISP will give you a fixed, or 'static' IP address).
Bottom line: Your configuration will probably look something like this...
1. WAN IP = 68.12.54.234 (supplied by your ISP)
2. LAN IP = 192.168.1.1
3. IP's for PC's on your LAN = 192.168.1.XX where XX is between 2 and 254.
2007-07-22 10:20:25 · answer #3 · answered by Cherrypicker 2 · 0⤊ 0⤋