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Is there a way to get IP from MAC broadcast(RARP)

Hi, I'm working for a NMS and I want to take IP addresses from MACs.In other words I want to take RARP table (reserved ARP table) broadcast.Can someone help me? Is there a way or a utility to take RARP table broadcast?

Thanks in advance

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Cisco Employee

Re: Is there a way to get IP from MAC broadcast(RARP)

For a userland application to get a RARP packet, you will probably have to use something like the Berkeley Packet Filter (or WinPcap on Windows) to sniff these packets. Or you could use an available sniffer such as tcpdump on *BSD or Linux:

tcpdump -w outfile rarp

On Solaris, you can use snoop:

snoop -o outfile rarp

On all platforms, you can use Ethereal or tethereal.

And there are also tools like arpwatch (ftp://ftp.ee.lbl.gov/) that can monitor ARP and RARP packets.

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