ip change [resolved] iguess

[ice_531]

hi , i used to be able to change my ip ...and i've forgotten


yes its static...due to my cable but i know theres other ways to change it without called my isp and have it changed/unplugging modem for an hour or w/e

any ideas please dont suggest ip masking.


ice

[visualAd]

Sometimes they give you an IP address based on the MAC address of your modem, so you could try changing that.

You could also change your TCP/IP configuration to "Automatically obtain IP address..", this will cause it to try and obtain an IP address via DHCP, but I doubt that will work if you have a static IP address.

[plenderj]

If your ISP is giving you a static IP, they probably have it tied to your telephone number - not the MAC Address. The ISP would never see the MAC Address of the router as they're on the wrong interface.

[visualAd]

Originally posted by plenderj
If your ISP is giving you a static IP, they probably have it tied to your telephone number - not the MAC Address. The ISP would never see the MAC Address of the router as they're on the wrong interface.

Some broadband ISP's do - I don't know exactly how it works though. I think it's done through the DHCP protocol.

[ice_531]

Well when i change my mac to my ethernetcard which goes to my cable then i am unable to connect using cable lol .. because it cant find my modem

DHCP is only enabled on my dialup connection and not through the broadband.

But yes the IP is tied to the Mac Address..but doesnt help seeing as how cant find the modem
.......only way for my ip to change seems to be unplugging my modem completely and shutting down... waiting a few minutes and then replugging and restarting.
Not sure HOW that would reset a new IP but it does.

I'd still like an easier way though. and no this really doesn't have a purpose...i've just been wondering about it lately...seems you can manipulate just about anything on a computer and i figured there was a way to change static ip aswell.


ice

[dsheller]

Im pretty sure it doesn't reset your ip just gives someone a chance to grab it before you take it back =) so then they give you a new one, I've had the same IP for months at a time before. Although, I think I heard there is a way you can do it, goto the TCP/IP connections thing and where it says specify your IP, do that, except change the last number a bit until you get a connection, also have to add in your DNS servers and such... however I don't think your cable company would like you doing that too much =)

[ice_531]

Where is the "TCP/IP connections thing" lol network connections from control panel?

oh yeah btw DHCP is enabled on my ethernet card, NOT dialup connection lol says autoconfiguration is enabled aswell... btw iam getting this information from command prompt... ipconfig /all

yes.. so where mite i go to change the IP myself


ice

[ice_531]

arrgg i think i remember where ur talking about the TCP/IP settings

isnt it like go to run and ttype winipscfg ? or sumthin

ill try that

[<ABX]

If your IP has changed previously then you have a Dynamic IP address not a static one.

If you had a Static IP address then it would be bound to the MAC Address of the modem itself (yes it does have one).

Now, the reason why your ip address doesnt change when your modem is off is because of the lease length of your ip address w/ the DHCP host. Your ip address belongs to you even when its(the modem) off, untill your lease expires.

In short, you cannot FORCE a change of IP address.

You have two options:

Call your ISP - you will have to explain why you need it to change...
Turn Off your Modem - you will have to wait untill the lease expires.

----

To Find out when your lease expires:

This will only work if you modem is directly connected to the system that you are on.

Windows Xp / 2K:

Click Start > Run

Type "cmd"
Press Enter

type "ipconfig /all"

C:\Documents and Settings\xous>ipconfig /all

Windows IP Configuration

        Host Name . . . . . . . . . . . . : [Your Computer NAME]
        Primary Dns Suffix  . . . . . . . :
        Node Type . . . . . . . . . . . . : Unknown
        IP Routing Enabled. . . . . . . . : No
        WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

        Connection-specific DNS Suffix  . :
        Description . . . . . . . . . . . : SiS 900-Based PCI Fast Ethernet Adap
ter
        Physical Address. . . . . . . . . : 00-00-00-00-00-00
        Dhcp Enabled. . . . . . . . . . . : Yes
        Autoconfiguration Enabled . . . . : Yes
        IP Address. . . . . . . . . . . . : 192.168.0.102
        Subnet Mask . . . . . . . . . . . : 255.255.255.0
        IP Address. . . . . . . . . . . . : fe80::207:95ff:fe37:95a3%4
        Default Gateway . . . . . . . . . : 192.168.0.1
        DHCP Server . . . . . . . . . . . : 192.168.0.1
        DNS Servers . . . . . . . . . . . : 192.168.0.1
                                            fec0:0:0:ffff::1%1
                                            fec0:0:0:ffff::2%1
                                            fec0:0:0:ffff::3%1
        Lease Obtained. . . . . . . . . . : Wednesday, July 14, 2004 11:52:03 AM

        Lease Expires . . . . . . . . . . : Thursday, July 15, 2004 11:52:03 AM

.....

you will see a display similar to this.... (there may be one or more adapters, we are interested in the one that your modem is connected to)

Win 9x:

I dont have a computer available but from memory:

Click Start > Run

Type "winipconfig"
Press Enter

look for something that says "Lease Expires: " xxxxxxxx for the adapter your modem is connected to.


----

I hope that you arnt trying to evade a ban....

[ice_531]

Well acually if i wanted to evade a ban...i'd just get on my other pc.

I successfully changed my ip twice in the past say 36hours .... im just seeing what other methods their are other than waiting for lease expire.. i did notice that in ipconfig ..

and i thought that there was a cmd to release the lease or sumthin maybe im thinking of flushdns but anyways thx for replies..

[ice_531]

ha i guess i see what the difference was between this pc and my other one....

this pc is on XP and my other was still on 98 se ..so that would be why the winipcfg works on it and not on this......

but something strange is that my ip can still change no matter the lease date

uhhh.. owell NEVERMIND this thread is SEMI-RESOLVED\nolongerimportant


thanks all!

ice

[Pc_Madness]

Yeah there is... /releaseall I think.

[<ABX]

There is... but that does not FORCE the DHCP server to release the IP it forces the client (the network card).

As far as i know, excluding exploits, this cannot be done.

but something strange is that my ip can still change no matter the lease date

that may have been the dhcp server dumping its records or a glitch.

Just out of curiosity, what was the Lease Obtained / Expires values?

[ice_531]

Originally posted by <ABX
There is... but that does not FORCE the DHCP server to release the IP it forces the client (the network card).

As far as i know, excluding exploits, this cannot be done.



that may have been the dhcp server dumping its records or a glitch.

Just out of curiosity, what was the Lease Obtained / Expires values?

Lease Obtained. . . . . . . . . . : Thursday, July 15, 2004 5:14:42 PM
Lease Expires . . . . . . . . . . : Friday, July 16, 2004 12:48:03 AM


and pcmadness ... releaseall only works on my ppp adapter and not my ethernet adapter. so that is of no use

thats for now.