how to change dynamic ip

la321

Honorable
Jun 14, 2012
274
0
10,780
i have a dynamic ip address how do i change it? i tired ipconfig /release and ipconfig /renew a space between them and tried this way ipconfig/release and ipconfig/renew i did this with my modem directly connected to computer instead of router when going into comand prompt i get this message


C:\Users\User>ipconfig /release

Windows IP Configuration


Ethernet adapter Local Area Connection 3:

Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : fe80::7cc9:4db:7835:ce9a%18
Default Gateway . . . . . . . . . :

Tunnel adapter isatap.{C5D49028-5962-4590-B307-2E3D61796D7D}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :
IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:79fb:3cb0:398c:52e4:cd3a
Link-local IPv6 Address . . . . . : fe80::3cb0:398c:52e4:cd3a%12
Default Gateway . . . . . . . . . :

Tunnel adapter 6TO4 Adapter:

Connection-specific DNS Suffix . :
IPv6 Address. . . . . . . . . . . : 2002:ad1b:32c5::ad1b:32c5
Default Gateway . . . . . . . . . :

C:\Users\User>ipconfig /renew

Windows IP Configuration


Ethernet adapter Local Area Connection 3:

Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : fe80::7cc9:4db:7835:ce9a%18
IPv4 Address. . . . . . . . . . . : 173.27.50.197
Subnet Mask . . . . . . . . . . . : 255.255.252.0
Default Gateway . . . . . . . . . : 173.27.48.1

Tunnel adapter isatap.{C5D49028-5962-4590-B307-2E3D61796D7D}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :
IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:79fb:3cb0:398c:52e4:cd3a
Link-local IPv6 Address . . . . . : fe80::3cb0:398c:52e4:cd3a%12
Default Gateway . . . . . . . . . :

Tunnel adapter 6TO4 Adapter:

Connection-specific DNS Suffix . :
IPv6 Address. . . . . . . . . . . : 2002:ad1b:32c5::ad1b:32c5
Default Gateway . . . . . . . . . : 2002:c058:6301::1

 
Solution
That's between you and your ISP. Just because it's a dynamic address doesn't mean that it will change every time you request a new one. Most ISP's give out semi reserved DHCP addresses which don't change for years, if ever (my residential IP address has been unchanged for almost 8 years). I'm curious as to why you want to change your IP address.
Before:

Code:
C:\Users\User>ipconfig /release

Windows IP Configuration


Ethernet adapter Local Area Connection 3:

Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : fe80::7cc9:4db:7835:ce9a%18
Default Gateway . . . . . . . . . :   <<--Note that there is nothing here


After:

Code:
C:\Users\User>ipconfig /renew

Windows IP Configuration


Ethernet adapter Local Area Connection 3:

Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : fe80::7cc9:4db:7835:ce9a%18
IPv4 Address. . . . . . . . . . . : 173.27.50.197     <<--Note that now you have an IP address
Subnet Mask . . . . . . . . . . . : 255.255.252.0    <<--a subnet mask
Default Gateway . . . . . . . . . : 173.27.48.1       <<--and a gateway address

 
That's between you and your ISP. Just because it's a dynamic address doesn't mean that it will change every time you request a new one. Most ISP's give out semi reserved DHCP addresses which don't change for years, if ever (my residential IP address has been unchanged for almost 8 years). I'm curious as to why you want to change your IP address.
 
Solution
Many DHCP servers assign same IP address to a client with same MAC address. So, if you really need different IP address, either wait couple of hours between /release and /renew attempts (hoping that somebody else will get your old IP address), change your MAC address (e.g. get the MAC from an old network card), or change the computer.