asked on

Test a specific nic in a dual nic arrangement (wires / wireless) on a laptop ping though a spefic nic

I am helping a friend remotely. his wifi connection doesnt' seem to be working. it conencts, gets an IP but no packets go through. I am remotely connected through the wired port on his laptop

How would I tell the laptop to ping out through a specific NIC when there's 2 to choose from? Normally it'll use the wired connection because its faster. and I don't want to mess up my connection over the wired connection using gotomypc.com

Route command somehow?
Ping using nic command?
thanks!

SOLUTION

jaynir

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IamStumped

ASKER

i found that thread already, but that talks of 2 nics / 2 gateways. both NICs are on the same subnet.

ASKER CERTIFIED SOLUTION

Jlucht

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SOLUTION

bluepig

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IamStumped

ASKER

Windows IP Configuration

Host Name . . . . . . . . . . . . : BR

Primary Dns Suffix . . . . . . . :

Node Type . . . . . . . . . . . . : Broadcast

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

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

DNS Suffix Search List. . . . . . : gateway.2wire.net

gateway.2wire.net

Ethernet adapter Wireless Network Connection:

Connection-specific DNS Suffix . : gateway.2wire.net

Description . . . . . . . . . . . : Intel(R) WiFi Link 5100 AGN

Physical Address. . . . . . . . . : 00-22-FB-41-A1-1A

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

Autoconfiguration Enabled . . . . : Yes

IP Address. . . . . . . . . . . . : 192.168.1.73

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

Default Gateway . . . . . . . . . : 192.168.1.254

DHCP Server . . . . . . . . . . . : 192.168.1.254

DNS Servers . . . . . . . . . . . : 192.168.1.254

Lease Obtained. . . . . . . . . . : Tuesday, December 22, 2009 10:21:41 AM

Lease Expires . . . . . . . . . . : Wednesday, December 23, 2009 10:21:41 AM

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : gateway.2wire.net

Description . . . . . . . . . . . : Intel(R) 82567LM Gigabit Network Connection

Physical Address. . . . . . . . . : 00-21-70-F0-9C-D2

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

Autoconfiguration Enabled . . . . : Yes

IP Address. . . . . . . . . . . . : 192.168.1.77

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

Default Gateway . . . . . . . . . : 192.168.1.254

DHCP Server . . . . . . . . . . . : 192.168.1.254

DNS Servers . . . . . . . . . . . : 192.168.1.254

Lease Obtained. . . . . . . . . . : Tuesday, December 22, 2009 10:21:35 AM

Lease Expires . . . . . . . . . . : Wednesday, December 23, 2009 10:21:35 AM

IamStumped

ASKER

===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x10003 ...00 22 fb 41 a1 1a ...... Intel(R) WiFi Link 5100 AGN
0x10004 ...00 21 70 f0 9c d2 ...... Intel(R) 82567LM Gigabit Network Connection
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.1.254 192.168.1.73        25
0.0.0.0 0.0.0.0 192.168.1.254 192.168.1.77        20
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1        1
169.254.0.0 255.255.0.0 192.168.1.77 192.168.1.77        20
187.141.2.64 255.255.255.255 192.168.1.254 192.168.1.77        20
187.141.2.105 255.255.255.255 192.168.1.254 192.168.1.77        20
187.141.2.106 255.255.255.255 192.168.1.254 192.168.1.77        20
192.168.1.0 255.255.255.0 192.168.1.73 192.168.1.73        25
192.168.1.0 255.255.255.0 192.168.1.77 192.168.1.77        20
192.168.1.73 255.255.255.255 127.0.0.1 127.0.0.1        25
192.168.1.77 255.255.255.255 127.0.0.1 127.0.0.1        20
192.168.1.255 255.255.255.255 192.168.1.73 192.168.1.73        25
192.168.1.255 255.255.255.255 192.168.1.77 192.168.1.77        20
216.115.222.22 255.255.255.255 192.168.1.254 192.168.1.77        20
224.0.0.0 240.0.0.0 192.168.1.73 192.168.1.73        25
224.0.0.0 240.0.0.0 192.168.1.77 192.168.1.77        20
255.255.255.255 255.255.255.255 192.168.1.73 192.168.1.73        1
255.255.255.255 255.255.255.255 192.168.1.77 192.168.1.77        1
Default Gateway: 192.168.1.254
===========================================================================
Persistent Routes:
None

SOLUTION

Skol2u

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Jlucht

To add to Skol2u's comment.. did you check to see if you are connected to your network and not your neighbors?

IamStumped

ASKER

again, this is remote troubleshooting so I am relying on him for info.

this has been happening for the last couple weeks on any wireless network, some open, some secured.

IamStumped

ASKER

and at least on this network, I put in a bogus / wrong WEP key and it did not connect / did not get an IP address.

went back and entered what is supposed to be the wep key and I got an IP address and it says connected

IamStumped

ASKER

i wound up doing winsockxpfix a while ago. I got him on the phone, had him disconnect the lan cable and surf and it's working now. so not sure what did solve it... I was just farting around trying to figure how to test it without needing him (control the PC over wired connection and test the connection of the wireless).

thanks guys. it would be good to know how to do that for next time though,

bluepig

Back to the original question, traffic is trying to flow through the route with the lowest metric (192.168.1.77 which is the wired connection)
If you want to force the laptop to use wireless (192.168.1.73) to ping 8.8.8.8, for example, you can add this to the route table:
route add 8.8.8.8 mask 255.255.255.255 192.168.1.73 metric 1

BTW 8.8.8.8 will respond to pings unless blocked by a firewall at your friend's place.

IamStumped

ASKER

blue - thanks. I tried something like that to ping their router and got an error earlier. I think the mask was wrong compared to what you showed:

i tried:
route add 192.168.1.254 mask 255.255.255.0 192.168.1.73
shoudl have been 255 on the last octet of the mask.

but let me ask... the metric, being 1, is best so it tries wireless (.73) first... when that fails, doesn't it go back to the route table to find another, higher metric route? which would be

0.0.0.0 0.0.0.0 192.168.1.254 192.168.1.77 20
and it would show success going out (but via the wired?) and you won't know it failed the first way?

or is the 'next' route to try be one of the last 255.255...... , both with metric of 1? but again, it doesn't say it failed the first way, but succeeded on the 2nd way?