J. Landman Gay wrote:
Is there a way to obtain the MAC address of a server from a client
machine on a Windows LAN?
Some web research suggests that the arp command will give what I want,
but when I run it in the command line it says there are no arp
entries, even if I successfully ping the server first.
I would have expected that to work ....
you are doing "arp -a" ?
allow a few seconds after the ping before trying it (should update
within one second unless there are some funny config changes on the
machine).
remember that it will not work on wifi networks, and will only work on a
simple LAN (i.e. no router between client and server)
remember it will not work properly in some (unusual) setups where all
traffic is directed through a router/DHCP server - usually identifiable
by multiple arp entries with the same MAC address for multiple IP
addresses (this is pretty obscure, but just possible)
and finally - because I just can't resist - why do you want to do this ?
answer off-list if you prefer - but I can think of a lot of reasons why
you should try to avoid knowing the MAC address of other machines ....
it can get you into deep trouble in some cases (e.g. proxy-ARP based
networks, or those where gratuitous ARPs are used to switch the Mac
address association, but there is no way to get these changes triggered
up to any application which has stored this info).
--
Alex Tweedly mailto:[EMAIL PROTECTED] www.tweedly.net
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