Computer name resolves to wrong IP

E

Ernest

I have three Ethernet adapters that show up in "ipconfig /all". One is
connected to my router/ISP (DHCP enabled), one is a "Microsoft TV/Video
Connection" (DHCP enabled), and one is a VPN (DHCP disabled).

Doing "ping foo" (where "foo" is my computer name) shows that it is
resolving "foo" to the wrong adapter/IP (the TV/Video Connection one, which
I think is my Dazzle device, at IP 0.1.0.4).

How does Windows XP choose which adapter is associated with the computer
name, and how do I set which one it *should* resolve to?

Regards,
Ernest
 
C

Chuck [MVP]

I have three Ethernet adapters that show up in "ipconfig /all". One is
connected to my router/ISP (DHCP enabled), one is a "Microsoft TV/Video
Connection" (DHCP enabled), and one is a VPN (DHCP disabled).

Doing "ping foo" (where "foo" is my computer name) shows that it is
resolving "foo" to the wrong adapter/IP (the TV/Video Connection one, which
I think is my Dazzle device, at IP 0.1.0.4).

How does Windows XP choose which adapter is associated with the computer
name, and how do I set which one it *should* resolve to?

Regards,
Ernest
Click to expand...

Ernest,

Any adapter, if DHCP is enabled, gets an IP address issued by a DHCP server on
the network segment that's attached to it.

Your "cute" munging of your computer name and IP address makes it hard to see
the problem. If this is something that you really wish for help on, you would
do well to post a complete and unedited log from "ipconfig /all" for this
computer, and for any other nearby computers, so we can truly help you.

Security is good, and being cautious is a good idea, in most cases. This isn't
a case where you can hide yourself, and expect to get useful help.

--
Cheers,
Chuck, MS-MVP 2005-2007 [Windows - Networking]
http://nitecruzr.blogspot.com/
Paranoia is not a problem, when it's a normal response from experience.
My email is AT DOT
actual address pchuck mvps org.
 
E

Ernest

Any adapter, if DHCP is enabled, gets an IP address issued by a DHCP
server on the network segment that's attached to it.
Correct.

Your "cute" munging of your computer name and IP address
Click to expand...

Wasn't trying to be cute or hide anything, sir. Just figured this was a
simple/common problem and that further detail wouldn't be needed.

It may also be worth mentioning that other computers on my LAN *can* ping
this computer with "ping foo" (since it resolves to the correct local
router-assigned IP), whereas the foo computer can ping others but just NOT
itself (due to foo resolving to 0.1.0.4, the TV/Video adapter shown
below).
"ipconfig /all" for this computer, and for any other nearby computers,
Click to expand...

Here it is...I disabled my VPN to eliminate one of the three adapters from
the confusion. Note that I cannot disable the TV/Video adapter...I've
tried, but Windows gives an error message about the adapter not supporting
plug-and-play. I also tried disabling NetBIOS for that adapter, but
"Ralph" still resolves to 0.1.0.4 on pings (again, only from Ralph itself,
not from other computers on my LAN).



Windows IP Configuration



Host Name . . . . . . . . . . . . : Ralph

Primary Dns Suffix . . . . . . . :

Node Type . . . . . . . . . . . . : Hybrid

IP Routing Enabled. . . . . . . . : No

WINS Proxy Enabled. . . . . . . . : No

DNS Suffix Search List. . . . . . : foo.com



Ethernet adapter Local Area Connection:



Connection-specific DNS Suffix . : hsd1.co.comcast.net.

Description . . . . . . . . . . . : Broadcom NetXtreme Gigabit
Ethernet

Physical Address. . . . . . . . . : 00-16-31-06-12-A9

Dhcp Enabled. . . . . . . . . . . : Yes

Autoconfiguration Enabled . . . . : Yes

IP Address. . . . . . . . . . . . : 192.168.0.14

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . : 192.168.0.1

DHCP Server . . . . . . . . . . . : 192.168.0.1

DNS Servers . . . . . . . . . . . : 68.87.85.98

68.87.69.146

Lease Obtained. . . . . . . . . . : Thursday, January 10, 2008
6:58:07 PM

Lease Expires . . . . . . . . . . : Sunday, January 13, 2008
6:58:07 PM



Ethernet adapter TV and Video:



Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : Microsoft TV/Video Connection

Physical Address. . . . . . . . . : 00-00-00-00-00-00

Dhcp Enabled. . . . . . . . . . . : Yes

Autoconfiguration Enabled . . . . : Yes

Autoconfiguration IP Address. . . : 0.1.0.4

Subnet Mask . . . . . . . . . . . : 255.255.255.255

Default Gateway . . . . . . . . . :
 
C

Chuck [MVP]

Wasn't trying to be cute or hide anything, sir. Just figured this was a
simple/common problem and that further detail wouldn't be needed.

It may also be worth mentioning that other computers on my LAN *can* ping
this computer with "ping foo" (since it resolves to the correct local
router-assigned IP), whereas the foo computer can ping others but just NOT
itself (due to foo resolving to 0.1.0.4, the TV/Video adapter shown
below).


Here it is...I disabled my VPN to eliminate one of the three adapters from
the confusion. Note that I cannot disable the TV/Video adapter...I've
tried, but Windows gives an error message about the adapter not supporting
plug-and-play. I also tried disabling NetBIOS for that adapter, but
"Ralph" still resolves to 0.1.0.4 on pings (again, only from Ralph itself,
not from other computers on my LAN).



Windows IP Configuration



Host Name . . . . . . . . . . . . : Ralph

Primary Dns Suffix . . . . . . . :

Node Type . . . . . . . . . . . . : Hybrid

IP Routing Enabled. . . . . . . . : No

WINS Proxy Enabled. . . . . . . . : No

DNS Suffix Search List. . . . . . : foo.com



Ethernet adapter Local Area Connection:



Connection-specific DNS Suffix . : hsd1.co.comcast.net.

Description . . . . . . . . . . . : Broadcom NetXtreme Gigabit
Ethernet

Physical Address. . . . . . . . . : 00-16-31-06-12-A9

Dhcp Enabled. . . . . . . . . . . : Yes

Autoconfiguration Enabled . . . . : Yes

IP Address. . . . . . . . . . . . : 192.168.0.14

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . : 192.168.0.1

DHCP Server . . . . . . . . . . . : 192.168.0.1

DNS Servers . . . . . . . . . . . : 68.87.85.98

68.87.69.146

Lease Obtained. . . . . . . . . . : Thursday, January 10, 2008
6:58:07 PM

Lease Expires . . . . . . . . . . : Sunday, January 13, 2008
6:58:07 PM



Ethernet adapter TV and Video:



Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : Microsoft TV/Video Connection

Physical Address. . . . . . . . . : 00-00-00-00-00-00

Dhcp Enabled. . . . . . . . . . . : Yes

Autoconfiguration Enabled . . . . : Yes

Autoconfiguration IP Address. . . : 0.1.0.4

Subnet Mask . . . . . . . . . . . : 255.255.255.255

Default Gateway . . . . . . . . . :
Click to expand...

OK, Ernest,

The LAN connection ("Broadcom NetXtreme Gigabit Ethernet") is getting an IP
address of "192.168.0.14" from "192.168.0.1", so no problem apparent there.

The TV/Video connection appears to be getting an autoconfigured address (no DHCP
server mentioned). Look under TCP/IP Properties for the TV adapter. Do you see
an "Alternate Configuration" tab?
<http://nitecruzr.blogspot.com/2006/08/manual-network-setup-procedures.html#Alternate>
http://nitecruzr.blogspot.com/2006/08/manual-network-setup-procedures.html#Alternate

--
Cheers,
Chuck, MS-MVP 2005-2007 [Windows - Networking]
http://nitecruzr.blogspot.com/
Paranoia is not a problem, when it's a normal response from experience.
My email is AT DOT
actual address pchuck mvps org.
 
J

John B

So get on another computer and ping 192.168.0.14.
Ping 0.1.0.4 (what a weird address this is!)

Let us know what you get on each.
 
E

Ernest

The TV/Video connection appears to be getting an autoconfigured
address (no DHCP server mentioned). Look under TCP/IP Properties for
the TV adapter. Do you see an "Alternate Configuration" tab?
Click to expand...

Yup, and both the LAN and TV/Video adapters have the same setting selected
under there: "Automatic private IP address".

Wish I could tell ya more about that TV/Video adapter. If I go into Device
Manager and look at the list of network adapters, it doesn't even show up
there. And like I said earlier, I can't disable the stupid thing either.
 
C

Chuck [MVP]

Yup, and both the LAN and TV/Video adapters have the same setting selected
under there: "Automatic private IP address".

Wish I could tell ya more about that TV/Video adapter. If I go into Device
Manager and look at the list of network adapters, it doesn't even show up
there. And like I said earlier, I can't disable the stupid thing either.
Click to expand...

OK, look at LSP / Winsock / TCP/IP corruption. Be persistent with the tools in
here.
<http://nitecruzr.blogspot.com/2005/05/problems-with-lsp-winsock-layer-in.html>
http://nitecruzr.blogspot.com/2005/05/problems-with-lsp-winsock-layer-in.html

--
Cheers,
Chuck, MS-MVP 2005-2007 [Windows - Networking]
http://nitecruzr.blogspot.com/
Paranoia is not a problem, when it's a normal response from experience.
My email is AT DOT
actual address pchuck mvps org.
 

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