Hey Ted,
I certainly understand this issue. The trick is pulling the info from a switch bridge table and then either querying the IEEE OUI database or having a prebuilt DB with the most common OUI's in it.
I wrote a perl script to help me hunt down WLAN cards. With so many fish to catch, I am a little lazy in code writing, so this uses ARP and just runs a web query to the IEEE OUI database. I ran this on my Mac with Curl installed and it worked great. Just cut copy paste and you should be ready, providing you have Perl and Curl installed. Both are free.
while() {
chomp;
my $addr = $_;
my $ip = $_;
$addr =~ s/.* ([\d\w]+:[\d\w]+:[\d\w]+):.*/$1/;
$addr =~ s/\b([\d\w])\b/0$1/g;
$addr =~ s/:/-/g;
next unless $addr =~ /..-..-../;
$ip =~ s/.*?(\d+\.\d+\.\d+\.\d+).*/$1/;
print ".";
$cards{$addr}||=`curl -sd "x=$addr"
http://standards.ieee.org/cgi-bin/ouisearch
($cards{$addr} =~ /Sorry!/) && ($cards{$addr} = "Unknown OUI: $addr");
$ips{$ip} = $addr; }
print "\n";
for(keys(%ips)) {
$cards{$ips{$_}} =~ s/.*.hex.\s+([\w\s\,\.]+)\n.*/$1/s;
print "$_ -> $cards{$ips{$_}}\n";
}
I hope it helps
