
William asks…
How to use static IP for some of the computers and hardware on my wire/wireless LAN?
Details:
I use a Linksys Wireless router. On its configuration, I can define up to three Static IPs (or DNS). What I don’t know is how to associate each of these addresses I define on the router to a PC or other equipment. The computers that I use run either Windows XP or Windows 2000. The main purpose of this is to allow one of them to be on a DMZ, but also allow it to copy files to one of the protected ones.
Questions:
Can I use Static IP on the wireless equipment or only with the one connected through the physical ports?
How can I determine which equipment receives each IP address?
What, if anything at all, do I have to do on the computers themselves?

Tim answers:
On your wireless router the 3 slots are for placing a DNS Server, not to setup a static IP.
To setup a static IP on Windows XP:
1. Click on Start > Control Panel
2. Click on “Network Connections”
3. Locate the Network Card you wish to configure (either wired or wireless card).
4. Right-click on the connection you wish to modify and goto “Properties”.
5. On the “General” tab, scroll down to and select “Internet Protocol (TCP/IP), and click “Properties”
6. From this screen you can manually configure your IP Address by choosing the bullet points “Use the following IP address”, and “Use the following DNS server addresses”.
Note:
1) The IP Address must match the ip scheme used on your network. (192.168.1.x) “x” – being the device IP.
2) You must not use the same IP address twice!
3) Also note on your routers DHCP, make sure you do not give out an address in that DHCP range. (usually between 100-150, but they keep changing it).
4) You usually can use the router as a DNS server (usually 192.168.1.1), otherwise you will need to assign the DNS that the router gets, which can be obtained from the “Status Tab” on the router.
Question 1:
You may use a Static IP for wireless or wired equipment.
Question 2:
There are two ways to get an IP.
Static IP- Which you would specify what IP Address that device will have, or
DHCP – Which means that a DHCP server (most likely your router in this case) will give the device an IP address.
So if you wish to manually assign each IP, you will need to configure a static IP for each device you want.
If you dont care what IP it gets, just hook it up to the router via (Wired, or Wireless) and the router should assign it one. (Given the routers DHCP server is running and assigning the right information.)
Question 3:
If the device just needs a connection, usually the DHCP will assign it an address, if you must have a static IP then you may do so on the device itself.
I hope this helps…
-Smopy