[frznmnky]

Disable DHCP with DSL connections

If you use a DSL modem to connect to the Internet, and you dial the connection directly from your computer, you may notice a rather long delay between the time the Windows desktop appears when booting up and when you can actually dial your connection. This delay can sometimes be up to two or three minutes, and can be extremely frustrating since it tends to lag other applications as well. The source of this delay is Windows XP attempting to locate an IP address for the network adaptor you are using to connect to the DSL modem.

This only occurs if the adaptor in question is set to ‘obtain an IP address automatically’ meaning Windows will actively seek to find an IP address for that adaptor from an outside source before assigning it one of its own range of addresses.

You can halt this behavior by simply assigning the network adaptor an IP address manually. It doesn’t matter which IP address, as long as it is in one of the private address ranges (like 192.168.xxx.xxx). This will not effect your Internet connection, as the DSL modem and the adaptor form a separate ‘virtual’ connection which is assigned an IP address by your Internet service provider.

To assign your network card a manual (static) IP address:

Right click on ‘my network places’ in the start menu and hit ‘properties.’

Highlight the network adaptor that is connected to your modem. If you have only one network adaptor, this will be ‘local area connection.’ Right click and select ‘properties.’

Highlight Internet Protocol (TCP/IP) and click ‘properties.’

Check ‘use the following IP address’ then in the ‘IP address:’ field, enter ‘192.168.5. (Pick a number between 1 and 254)’ Enter ‘255.255.255.0′ in the ’subnet mask:’ field. Click ‘ok.’

The next time you reboot, the delay should be gone, and you will be able to access your connection right away.

[Hazirak]

It should probably be noted that if you're doing this, you must also enter a default gateway and primary DNS server or your internet won't work at all.

The easiest way to find out what they are is to click Start, "Run...", type "cmd" without the quotes, and hit Enter. Type "ipconfig /all" in the black box that pops up (once you're actually connected to the internet), and you'll see a bunch of information on your current IP configuration. Note down the IP addresses next to "Default Gateway" and "DNS Servers" on the interface you're giving an IP address to, since those are the only two fields we care about right now. These are the numbers you'll need to plug into their respective fields when you manually set your IP address.

[animerth]

This is for getting a IP adress for a LAN or router so you should change the topic of this post

To disable DHCP for DSL it self you must change the configuration on your router

Also because this is for your LAN getting a IP from DHCP will only take about 5 secs

A real DSL modem will renew it's IP every 24 hours
In DSL you don't "dial in" it does go into the phone line and there is a modem but the "internet signal" does not go into the "voice part" of your phone, that is why you can use your phone when you on the internet with DSL. In Dial up the data goes into the voice part of your phone that is why you can't talk on then phone when you use dial up unless you have more than one line.

To set DHCP setting for your DSL router find your "default gateway" copy the IP and paste in your browser like a url