Mac/Ip adress

Og_balla · 02-03-2009, 07:15 AM

OK.I am trying to change my external Ip adress.(99.12.34.34...........) not the internal one( not 192.168.............)

I tried changing my Mac adress in my compuer.I cn easily change my Mac adress.BUt my Ip doesnt change.How do i change my Ip and Mac adress at the same time without reconnectng the modem?I thought the Mac and Ip adress were linked to each other.BUt when i change MY Mac i alos want My Ip to change.Plz help and tell me an easy way to change My Mac and Ip adress.I use a microsoft windows xp professional sevice pack 2.

**johnwill** · 02-04-2009, 01:09 PM

The ISP determines that IP address, you can't change it.

Why do you feel the need to change your IP address?

**bilbus** · 02-08-2009, 02:10 PM

mac addresses are not seen on the internet, so changing it will do nothing.

like john said .. your isp controls your ip address, ask them for a static ip if they say yes, then they will give you one to put in.

asgley · 02-26-2009, 08:23 AM

some isp's will only assign you an ip address if they have your MAC registered with them.

**johnwill** · 02-27-2009, 10:57 AM

Typically, for cable modems, the MAC address they use is the MAC address of the DOCSIS modem. Very few companies key on the machine's MAC address nowadays.

**bilbus** · 02-27-2009, 01:46 PM

That is correct, its no longer a safe way to control access ... cable modem mac addesses are not cloneable so they use trhose now.

02-03-2009, 07:15 AM	#1 (permalink)
Og_balla Registered User Join Date: Feb 2009 Posts: 3 OS: Windows Xp	Mac/Ip adress OK.I am trying to change my external Ip adress.(99.12.34.34...........) not the internal one( not 192.168.............) I tried changing my Mac adress in my compuer.I cn easily change my Mac adress.BUt my Ip doesnt change.How do i change my Ip and Mac adress at the same time without reconnectng the modem?I thought the Mac and Ip adress were linked to each other.BUt when i change MY Mac i alos want My Ip to change.Plz help and tell me an easy way to change My Mac and Ip adress.I use a microsoft windows xp professional sevice pack 2.

02-04-2009, 01:09 PM	#2 (permalink)
johnwill Manager, Networking Forums Join Date: Sep 2002 Location: S.E. Pennsylvania, US Posts: 41,787 OS: Windows 7, XP-Pro, Vista, Linux Blog Entries: 1	Re: Mac/Ip adress The ISP determines that IP address, you can't change it. Why do you feel the need to change your IP address? __________________ If TSF has helped you, Tell us about it! or Donate to help keep the site up! Microsoft MVP - Windows Desktop Experience

02-08-2009, 02:10 PM	#3 (permalink)
bilbus TSF Enthusiast Join Date: Aug 2006 Posts: 949 OS: OS2 Warp	Re: Mac/Ip adress mac addresses are not seen on the internet, so changing it will do nothing. like john said .. your isp controls your ip address, ask them for a static ip if they say yes, then they will give you one to put in.

02-26-2009, 08:23 AM	#4 (permalink)
asgley Registered User Join Date: Feb 2009 Posts: 105 OS: xp32, vista64, gentoo, rhle4, rhel 5 64, centos 64, debian, solaris, 2k3, 2k8	Re: Mac/Ip adress some isp's will only assign you an ip address if they have your MAC registered with them.

02-27-2009, 10:57 AM	#5 (permalink)
johnwill Manager, Networking Forums Join Date: Sep 2002 Location: S.E. Pennsylvania, US Posts: 41,787 OS: Windows 7, XP-Pro, Vista, Linux Blog Entries: 1	Re: Mac/Ip adress Typically, for cable modems, the MAC address they use is the MAC address of the DOCSIS modem. Very few companies key on the machine's MAC address nowadays. __________________ If TSF has helped you, Tell us about it! or Donate to help keep the site up! Microsoft MVP - Windows Desktop Experience

02-27-2009, 01:46 PM	#6 (permalink)
bilbus TSF Enthusiast Join Date: Aug 2006 Posts: 949 OS: OS2 Warp	Re: Mac/Ip adress That is correct, its no longer a safe way to control access ... cable modem mac addesses are not cloneable so they use trhose now.