IP Problem

[mikey62]

I have comcast cable modem using XP through a linksys router. My problem is when I do a dhcp renew in the router I keep getting the same IP 24.14.xxx.xx as an example as my wan ip. the router then dispenses to my nic a 192 address which is the norm. However when ever I release renew in the router I keep getting the same Ip! I called comcast and they could do nothing. I also hardlined directly to the cable modem using my laptop as a direct connection = I rec a different IP of 67.173.xx.x as an example. but when I do a ipconfig /release and then I renew I still get the same 67.173.xx.x Ip from comcast. so?

does comcast have ip's set aside to authenticate with my mac address on my machines? even though they supposedly use dhcp? the tech could not believe it but understood. my problem is I don't want a static IP but seem to have one!

is my situation a common one?

any ipspoofing ware out there I can use to get a new IP or at least hide behind something to be safer?

any help appreciated or any sites welcome.

thanks!

Mikey

 

[skotman]

Comcast is using DHCP, but it sounds like your lease isn't expiring. They probably have their DHCP scope with a 1 week lease length.
The way DHCP works is at the half life of the lease your router/pc asks for that IP address again, thus renewing the lease for another week.

I'm assuming you want a dynamic IP due to security reasons.

The type of IP shouldn't matter because you have a router. If you want a more dynamic IP I suggest finding a provider that uses PPPoE (alot of DSL providers use this).

Scott Heath

http://www.scottspad.com

AIM: orange7288

 

[Newposter]

Most people would love to have a static IP.

Newposter
"Good judgment comes from experience. Experience comes from bad judgment."