How do I get my Router to issue seperate IPs

Right now I have my desktop and wireless laptop connected to my Linksys Wirelss-G. I have a dynamic IP address through SBC Global. However ever since I hooked up my router, I always have the same IP address. AND my laptop has the same IP address as my desktop. I thought when setting up a network, IP address are randomly generated. Can someone provide any help? THanks much

 

There are two ways you can go about this.

The first is to enable DHCP on your router and enable your computers to use DHCP. This way when each computer powers up, it'll pull a unique IP assigned by the router. The downside to this is there are security issues (as with anything).

The second option is to manually setup your connections using the windows Network panel. You can then manually assign IPs to each NIC device connecting to the router.

 

Thanks for the reply. I left out some information (just learned some new things) and not sure if you're advice pertains now. Some additional info..

As I understand it, the router will issue my desktop and laptop separate IPs so that they can use the Internet together. The Internet will not see these IPs. SBC issues me my dynamic IP address which the Internet always sees.

My router assigns a personal IP address to the desktop and to the laptop (they are sequential). SBC has always issued me a Dynamic IP address in the past. However, ever since I setup the network, I'm always using the same IP address that the Internet sees . How can I get the IP address (that the Internet sees) issued dynamically again?

2nd question: There are some sites that I frequent often (say using the desktop). Now if someone else in the household wanted to go to the site at the same time (using the wireless laptop) they get denied. The message is typically, "you are already logged onto this site". Is there a way around this?

Not sure if the advice you gave earlier is still valid in this case. I would appreciate any feedback. Thanks.

 

I have to admit, I'm a little confoosed. Is there something specific you're trying to accomplish?

The IP assigned by your ISP and used by your router is automatically handled by the ISP. If you needed a different address, resetting your router should 'release' (or 'get another') IP from your ISP. The IP's assigned to your personal computers are somewhat within your control. You can automatically have them doled out using DHCP or manually assign private addresses to your machines.

Now, if the problem is that a site is seeing two machines trying to logon from the same ISP...that's a little different. To be quite honest, I don't know of any workarounds for this if a site has some type of security feature to disallow two logons from the same IP. I've never run into that issue except with AOL...but that isn't a website. Is it a public site? If so, which site is it?

 

<blockquote id='quote'> quote:<hr height='1' noshade id='quote'>Originally posted by Corrupted

 

Corrupted,

It's possible you didn't setup the PPPoE section of the router. Normally, this is what allows connection to the web, the router could be working as a hub at the moment and only letting 1 computer to connect at a time. If configured properly, the router should connect to the internet and your systems get their IP's from the router, this is called NAT, Network Address Translation. The ISP has one address, and you have a different one on your computers.

Here's Linksys's setup procedure for their Wireless Routers & SBC Global's PPPoE connection.

http://linksys.custhelp.com/cgi-bin/linksys.cfg/php/enduser/std_adp.php?p_faqid=378&p_created=1084210200&p_sid=h9J4aelh&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9NCZwX3NlYXJjaF90eXBlPXNlYXJjaF9ubCZwX3Byb2RfbHZsMT0xJnBfcHJvZF9sdmwyPSZwX2NhdF9sdmwxPSZwX2NhdF9sdmwyPSZwX3NjZl9sYW5nPTEmcF9wYWdlPTEmcF9zZWFyY2hfdGV4dD1zYmM*&p_li=

-Vb-

 

Your ISP dynamically assigns a public IP address to you when you first connect. If your cable/DSL modem is connected to your PC, then it gets that address. If it is connected to a router, then the router gets that address. But your ISP will always assign one and only one IP address to whatever connects to the modem. If you have a router, it will assign private addresses to all the PCs in your home and then it will managed the connections. Computers don't just use IP address, they also use ports. So in most cases, all the PCs in your house can access the exact same site simultaneously because the router will connect each using a different port and then send all the replies back to the right place. It is possible for a site to use your IP address to manage your session, and you would get the type of problem you are describing. That is VERY unusual, but if it is the case then there is not much you can do. You cannot assign a unique public IP address to multiple PCs in your home network.