strange ipconfig output ?

  • Thread starter Thread starter Polaris
  • Start date Start date
P

Polaris

Hi:

I have an ipconfig output (provided to me by one of my users) which shows
that the "IP Address" is the same as the "Default Gateway". Is this an error
condition?

The user is using Windows XP with SP2, and ipconfig shows that "IP Routing
Enabled" = Yes

Thanks in Advance!
Polaris
 
"Polaris" said:
Hi:

I have an ipconfig output (provided to me by one of my users) which shows
that the "IP Address" is the same as the "Default Gateway". Is this an error
condition?
Click to expand...

That's normal for a dial-up connection. It doesn't make sense for a
LAN connection.
The user is using Windows XP with SP2, and ipconfig shows that "IP Routing
Enabled" = Yes
Click to expand...

That's normal if Internet Connection Sharing is enabled.
Thanks in Advance!
Polaris
Click to expand...

You're welcome. If I could see the whole ipconfig output, I might be
able to explain exactly what's happening on that computer.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com
 
Thanks for your info. It was a wireless connection, is it an error
condition? If the Default gateway is the same as ip address, how will
traffic without known routes goes outside the computer?

Polaris
 
"Polaris" said:
Thanks for your info. It was a wireless connection, is it an error
condition? If the Default gateway is the same as ip address, how will
traffic without known routes goes outside the computer?

Polaris
Click to expand...

For a wired or wireless LAN connection, it's an error condition. I
don't see how the computer could access IP addresses outside its own
subnet through that connection.

If there's another LAN connection, the computer could be using that
connection's default gateway.

If I could see the whole ipconfig/all output, I might be able to make
sense of the situation.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com
 
Thanks. Here is the ipconfig output :

Windows IP Configuration

Host Name . . . . . . . . . . . . : leoxp
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : Yes

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Mobile
Connection
Physical Address. . . . . . . . . : 00-05-4E-41-80-37

PPP adapter Sprint PCS Vision - Sierra Wireless:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Physical Address. . . . . . . . . : 00-05-4E-00-00-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 79.1.104.16
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 79.1.104.16
DNS Servers . . . . . . . . . . . : 79.2.31.1

NetBIOS over Tcpip. . . . . . . . : Disabled
 
Subnet mask?

Polaris said:
Thanks. Here is the ipconfig output :

Windows IP Configuration

Host Name . . . . . . . . . . . . : leoxp
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : Yes

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Mobile
Connection
Physical Address. . . . . . . . . : 00-05-4E-41-80-37

PPP adapter Sprint PCS Vision - Sierra Wireless:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Physical Address. . . . . . . . . : 00-05-4E-00-00-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 79.1.104.16
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 79.1.104.16
DNS Servers . . . . . . . . . . . : 79.2.31.1

NetBIOS over Tcpip. . . . . . . . : Disabled
Click to expand...
 
As Steve said in his original post, that is the normal situation for a
dialup connection. This is a dialup connection. The default gateway is the
dialup link, which uses the "received" IP address of the PPP connection. All
no-local traffic will go across the dialup link to the remote access server.
The LAN NIC on this machine is unplugged. It is using the dialup connection
only.
 
"Bill Grant" said:
As Steve said in his original post, that is the normal situation for a
dialup connection. This is a dialup connection. The default gateway is the
dialup link, which uses the "received" IP address of the PPP connection. All
no-local traffic will go across the dialup link to the remote access server.
The LAN NIC on this machine is unplugged. It is using the dialup connection
only.
Click to expand...

That's right, Bill. This is a Sprint PCS cellular connection, and
Windows XP considers it to be a PPP (dial-up) connection.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com
 
Back
Top