how do I get the MAC Address given the IP

Hi All,
>
Any ideas how can I get the MAC address of a PC outside my lan given the IP.
I tried using iphlpapi.dll to call sendARP but dosen't work for outside my
lan.
>
Thanks in advance
>

Hello, MMA!
>
MAny ideas how can I get the MAC address of a PC outside my lan given the
MIP. I tried using iphlpapi.dll to call sendARP but dosen't work for
Moutside my lan.
>
You can use WMI
To connect to another computer, see example
( http://msdn2.microsoft.com/en-us/lib...mentscope.aspx )
To query for MAC address
( http://www.eggheadcafe.com/articles/20030511.asp )
>
--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot

Hi All,
>
Any ideas how can I get the MAC address of a PC outside my lan given the IP.
I tried using iphlpapi.dll to call sendARP but dosen't work for outside my
lan.
>
Thanks in advance
>

MMA wrote:
>>
What would you do with the MAC address? Aside from that, are you really
expecting to see the MAC address of the computer that's accessing your
site/app? Because if they're using NAT you won't get to that. Concider
the following:
>
pc(192.168.0.1)-->router(external ip: 10.10.1.1)-->| WEB/VPN/whatever
|-->your router-->your server/pc
>
Now your server will only see the 10.10.1.1 address so when you're
actually able to get the associated MAC address, you'll only get the MAC
address of the router, not the PC.
>
ps. I know 10.10.x.x is an internal range, I just used it for
demonstrational purposes ;)
--
Rinze van Huizen
C-Services Holland b.v
>