strange ipconfig output ?

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

In article <ujZ#(E-Mail Removed)>, "Polaris"
<(E-Mail Removed)> wrote:
>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?

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

That's normal if Internet Connection Sharing is enabled.

>Thanks in Advance!
>Polaris

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

"Steve Winograd [MVP]" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> In article <ujZ#(E-Mail Removed)>, "Polaris"
> <(E-Mail Removed)> wrote:
>>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?
>
> 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
>
> That's normal if Internet Connection Sharing is enabled.
>
>>Thanks in Advance!
>>Polaris
>
> 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

In article <(E-Mail Removed)>, "Polaris"
<(E-Mail Removed)> wrote:
>>>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?
>>
>> 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
>>
>> That's normal if Internet Connection Sharing is enabled.
>>
>>>Thanks in Advance!
>>>Polaris
>>
>> You're welcome. If I could see the whole ipconfig output, I might be
>> able to explain exactly what's happening on that computer.
>
>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

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


"Steve Winograd [MVP]" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> In article <(E-Mail Removed)>, "Polaris"
> <(E-Mail Removed)> wrote:
>>>>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?
>>>
>>> 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
>>>
>>> That's normal if Internet Connection Sharing is enabled.
>>>
>>>>Thanks in Advance!
>>>>Polaris
>>>
>>> You're welcome. If I could see the whole ipconfig output, I might be
>>> able to explain exactly what's happening on that computer.
>>
>>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
>
> 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

Subnet mask?

"Polaris" <(E-Mail Removed)> wrote in message
news:%(E-Mail Removed)...
> 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
>
>
> "Steve Winograd [MVP]" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
>> In article <(E-Mail Removed)>, "Polaris"
>> <(E-Mail Removed)> wrote:
>>>>>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?
>>>>
>>>> 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
>>>>
>>>> That's normal if Internet Connection Sharing is enabled.
>>>>
>>>>>Thanks in Advance!
>>>>>Polaris
>>>>
>>>> You're welcome. If I could see the whole ipconfig output, I might be
>>>> able to explain exactly what's happening on that computer.
>>>
>>>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
>>
>> 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
>
>

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.

"Polaris" <(E-Mail Removed)> wrote in message
news:%(E-Mail Removed)...
> 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
>
>
> "Steve Winograd [MVP]" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
>> In article <(E-Mail Removed)>, "Polaris"
>> <(E-Mail Removed)> wrote:
>>>>>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?
>>>>
>>>> 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
>>>>
>>>> That's normal if Internet Connection Sharing is enabled.
>>>>
>>>>>Thanks in Advance!
>>>>>Polaris
>>>>
>>>> You're welcome. If I could see the whole ipconfig output, I might be
>>>> able to explain exactly what's happening on that computer.
>>>
>>>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
>>
>> 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
>
>

In article <(E-Mail Removed)>, "Bill Grant"
<not.available@online> wrote:
>>>>>>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?
>>>>>
>>>>> 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
>>>>>
>>>>> That's normal if Internet Connection Sharing is enabled.
>>>>>
>>>>>>Thanks in Advance!
>>>>>>Polaris
>>>>>
>>>>> You're welcome. If I could see the whole ipconfig output, I might be
>>>>> able to explain exactly what's happening on that computer.
>>>>
>>>>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
>>>
>>> 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.
>>.
>> 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
>
> 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.

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

But if you need to change such behavior look at
http://support.microsoft.com/kb/q143168/
Arkady

"Bill Grant" <not.available@online> wrote in message
news:(E-Mail Removed)...
> 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.
>
> "Polaris" <(E-Mail Removed)> wrote in message
> news:%(E-Mail Removed)...
>> 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
>>
>>
>> "Steve Winograd [MVP]" <(E-Mail Removed)> wrote in message
>> news:(E-Mail Removed)...
>>> In article <(E-Mail Removed)>, "Polaris"
>>> <(E-Mail Removed)> wrote:
>>>>>>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?
>>>>>
>>>>> 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
>>>>>
>>>>> That's normal if Internet Connection Sharing is enabled.
>>>>>
>>>>>>Thanks in Advance!
>>>>>>Polaris
>>>>>
>>>>> You're welcome. If I could see the whole ipconfig output, I might be
>>>>> able to explain exactly what's happening on that computer.
>>>>
>>>>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
>>>
>>> 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
>>
>>
>
>