Get MAC Address

What's the best way to get the MAC address of a remote IP via BASH?

On 2006-03-23, (E-Mail Removed) <(E-Mail Removed)> wrote:
> What's the best way to get the MAC address of a remote IP via BASH?

arp
man arp for more info

Davide

--
I try to explain, but he goes into the back room and gets this wizened old
guy with a pocket protector and a nametag that read "Senior Engineer."
-- Jack Twilley

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Davide Bianchi wrote:
> On 2006-03-23, (E-Mail Removed) <(E-Mail Removed)> wrote:
>> What's the best way to get the MAC address of a remote IP via BASH?
>
> arp
> man arp for more info

And remember, arp only knows about MAC addresses on the local lan
segment. If you are trying to obtain a MAC address past the lan gateway,
then you have to come up with an application solution.


- --

Lew Pitcher, IT Specialist, Corporate Technology Solutions,
Enterprise Technology Solutions, TD Bank Financial Group

(Opinions expressed here are my own, not my employer's)
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That's my problem exactly. The MAC I need is across the gateway,
another subnet -- across a WAN actually. I can RDP into the box just
fine and get the MAC by running ipconfig /all (a windows server), but I
would like to more elegantly do it via a BASH prompt. Is there some
tool that does this?

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(E-Mail Removed) wrote:
> That's my problem exactly. The MAC I need is across the gateway,
> another subnet -- across a WAN actually. I can RDP into the box just
> fine and get the MAC by running ipconfig /all (a windows server), but I
> would like to more elegantly do it via a BASH prompt. Is there some
> tool that does this?

Nope. There is no tool to do what you ask.

It looks like you are going to have to build one. It will likely be a
client/server architecture, with the server sitting on the far end (the
source of the MAC address you want) and the client on your local
machine. It /can/ be as simple as a ssh/rsh/telnet "script" that logs on
to the far machine and runs ipconfig to extract the MAC address, or
something more specific to the task, but it is something that you are
going to have to develop.

Sorry


- --

Lew Pitcher, IT Specialist, Corporate Technology Solutions,
Enterprise Technology Solutions, TD Bank Financial Group

(Opinions expressed here are my own, not my employer's)
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(E-Mail Removed) wrote:
> That's my problem exactly. The MAC I need is across the gateway,
> another subnet -- across a WAN actually. I can RDP into the box just
> fine and get the MAC by running ipconfig /all (a windows server), but I
> would like to more elegantly do it via a BASH prompt. Is there some
> tool that does this?
>

Perhaps you could find the information by SNMP on other router or directly on
the server
so after you could easily script

Ahh. its a windows box. Then you might be able to do something with
nmblookup -A IPADDRESS . It might pull the same info if you do an
nbtstat -A IPADDRESS . It includes the MAC.

-R