How to change IP on wireless network?

[Anima]

Hello,

I would like to change my IP address.

My computer is automatically connected to a wireless network (administration by the hotel building) and so I don't have access to the router.


==

The command ipconfig/all gives:

IP Routing Enabled: No
WINS Proxy Enabled: No
Dhcp Enabled: Yes
Autoconfiguration Enabled: Yes
IP Address: ....155
DHCP Server: ....237
Lease Obtained: 1/6/2009
Lease Expires: 1/7/2009 (1 day lease)

the IP address from whatismyip.com is: ....124


==

I have tried the following:

command prompt, ipconfig/release, ipconfig/renew protocol

changing the 'IP/TCP' in Properties for the wireless connection protocol

switch wireless off/on on the computer, disable/reenable connection, and 'repair' for the connection

connecting to another wireless network then reconnecting to the primary one



===


But the IP address is still ....124



===

How can the IP address be changed?


Is there any service that can do this?




Thanks in advance for your help!!

[AboveTheLogic]

im betting the 155 IP is your local IP (192.168.1.155 or something like that)

the 124 IP is your external IP (which is odd because the IP you posted from does not end in 124, I guess you posted from somewhere else)

you can't change your external IP by doing the ipconfig/release or renew command, at best that will change your local IP

please read the articles linked in my signature below, that might shed some light for you

I dont think you will be able to change your external (Internet) IP without access to the router config

[Anima]

Thanks for your reply.

I am posting from the same computer which would like to change the IP.


It seems also that the IP has stayed with this computer, even through travel and different places and networks, etc.

Is there such thing as a computer-specific IP? It seems that this IP is not changing, even when networks are changed.


Is there any service or programmer hire that can help with this?
(There definitely should be one!! Maybe people can post services for hire in a marketplace section of the forum?)




Thanks again!!

[AboveTheLogic]

the IP when you go to whatismyip.com isnt changing when you go to another location?

is this a company computer?

[Anima]

I haven't checked the IP in each location to be certain, but it looks like the same sites have stored information based on IP address (not the browser's cache or cookies since those are cleared) that is recognizing the computer, even when have gone between locations.


This is a personal computer.

[AboveTheLogic]

the only scenario I've seen that a computer in different locations would be recognized by the same IP is if it is always connected through a proxy and/or VPN

if you don't do that (if you can just plug in and surf the web) then it is not likely that you are being ID'd by the same Internet IP from other locations

[wimiadmin]

I find that a little odd that your computer has the same IP no matter where you go.

How are you displaying the IP to determine that it's the same no matter where you are?

My first thought is that your wired nic has been assigned a static IP and if you're doing an ipconfig /all in DOS then you'll see the same IP each and every time.....even though it's not a factor since you're connecting wirelessly.

My second thought is that you've assigned your wireless card a static IP and you've just been lucky that each wireless network you attach to uses the same settings.....which is not uncommon. 192.168.1.x is a very common setting at hotels and other wireless networks.

Just to clarify.....when you connect wirelessly, you're using the hotel wireless or cafe wireless.....and NOT a mobile wireless provider.

Also....want to make sure that when you connect at an alternate location that it's not the 1st floor vs. the 10th floor of the same hotel.....of the cafe in the same hotel.

This one has me intrigued.

[wimiadmin]

Here's an interesting theory.

The IP that you used to post shows that it belongs to an ISP and not a hotel.

What if you go to an alternate location and connect and that wireless network is serviced by the same ISP. The ISP has your mac address from your previous connection in their DHCP so you get the same IP.

It would be kind of crazy if that were the case that you're getting a public IP assigned directly to you vs. a 192.168.x.x type address.

But.....it would make sense that the ISP is servicing both locations.....providing both locations are in the same general geographical area.

The 155 IP address that you refer to....can you give us the first octet of that address? Is it the same as the IP that you're using to post?

[Anima]

Yes, all of these posts are from the same computer and connection that would like to change the IP.

The different locations are both within the same city, and other cities in the country. It is possible that the locations in the city have the same ISP, but I am sure that it was connected to a different ISP in other cities.

The connection is to the wireless networks provided by each location's ISP.

It is not using a proxy server, and not on a mobile wireless connection.


more from ipconfig/all:

IP Configuration
Host Name: (computer name)
IP Routing Enabled: no
IP Address: 172.20.0.155
Subnet Mask: 255.255.255.0
Default Gateway: 172.20.0.1
DHCP Server: 172.20.0.1
DNS Servers: 203.146.237.237
203.146.237.222



when do ipconfig/release and ipconfig/renew,
the same IP set is given (IP Address, Subnet Mask, and Default Gateway)




====

So, I wonder if the same IP is being assigned to the computer, if there is any way to change or release/renew it?

[wimiadmin]

The 172.20.0.155 is an internal/private IP much like 192.168.x.x.

From the first post, DHCP is set to Yes meaning your network card grabs an IP each time it connects and is not set to static. However, the IP that you're posting from is controlled by the hotel so no chance of changing that one probably.

The 172.20.0.155 IP can be changed.

When you do an ipconfig /all one of the lines returned shows the lease expiration date. Wait until that date/time passes, then do an ipconfig /release - ipconfig /renew and see if you get a new IP. If not, then the DHCP server assigning the IPs has your mac locked in and assigns the same IP.

Alternately, if you could borrow a USB wireless card, disable your onboard wireless and see what IP you get with the borrowed one.