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Windows 7: One network card but two IP'S ?

07 Sep 2013   #11
Shadowjk

Windows 7 Professional x64 SP1 ; Windows Server 2012 R2 Standard
 
 

Hmm, most bizarre... Both addresses are coming from your ethernet controller. Do you have any virtualisation software running at all since they can cause multiple addresses to one MAC?

Also, your tunnel adapter which is used to tunnel IPv6 over IPv4 may have required an IPv4 address which is most likely where this has come from.

Can you run the following program below to reset your TCP/IP settings and hopefully reset the tunnel adapter to see if that is the cause.

Please reboot the router as well in order to flush the DHCP table and get accurate results.

Note   Note
Your machine will reboot after it has completed!


Hope This Helps,
Josh




Attached Files
File Type: zip IPResetALL.zip (33.6 KB, 3 views)
My System SpecsSystem Spec
.
07 Sep 2013   #12
Nelly

Windows 7 Home Premium
 
 

Hi Josh,
Done that and, as you can see, no luck. Although the lease time for all devices are now the same which shows me I carried out the method correctly (at least this time it's not operator error :-).
Earlier you mentioned a process to remove the IPv6 address. Is that still possible ? If so, I'll try it.
Thanks for your help.
Nelly

One network card but two IP'S ?-dhcp.png


My System SpecsSystem Spec
07 Sep 2013   #13
Shadowjk

Windows 7 Professional x64 SP1 ; Windows Server 2012 R2 Standard
 
 

To remove the tunnel interfaces please open an Elevated Command Prompt and type the following - Elevated Command Prompt:

Code:
netsh interface ipv6 isatap set state disabled
Press enter and then input the following:

Code:
netsh interface ipv6 teredo set state disabled
This should disable the tunnel interfaces.

Please then reboot the machine and router to clear any DHCP tables

Josh
My System SpecsSystem Spec
.

07 Sep 2013   #14
Nelly

Windows 7 Home Premium
 
 

Hi Josh,
Sorry for delay in answering, got things on at home. I did that (see below)
Thanks, Nelly

One network card but two IP'S ?-dhcp-cmd.png

p.s. When I entered the second netsh command I received the message :
the following command was not found : interface ipv6 teredo set state disabled.


My System SpecsSystem Spec
07 Sep 2013   #15
Shadowjk

Windows 7 Professional x64 SP1 ; Windows Server 2012 R2 Standard
 
 

My apologies the first part needs to be entered serperately:

Quote   Quote: Originally Posted by technet
To Turn Off Teredo by Using the Netsh Command in Windows Vista
To open a command prompt as an administrator, click Start, click All Programs, click Accessories, right-click Command Prompt, and click Run as administrator.
If the User Account Control dialog box appears, confirm that the action it displays is what you want, and then click Continue.
At the command prompt, type the following lines (press ENTER after each line):
netsh
interface
teredo

At the netsh interface teredo command prompt, type:
set state disabled
More information - Internet Protocol Version 6, Teredo, and Related Technologies in Windows Vista
My System SpecsSystem Spec
07 Sep 2013   #16
Nelly

Windows 7 Home Premium
 
 

Thanks for the link :apology not necessary. You've been so helpful.
I'm going to work on this more tomorrow. Thanks again, Nelly
My System SpecsSystem Spec
07 Sep 2013   #17
Shadowjk

Windows 7 Professional x64 SP1 ; Windows Server 2012 R2 Standard
 
 

No worries, take your time I hope this is the cause otherwise we may be looking at a different issue here

Josh!
My System SpecsSystem Spec
Reply

 One network card but two IP'S ?




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