Hello Monks, I am working with SNMP and perl. I am walking oid ipNetToMediaPhysAddress oid. The results always vary, but follow the following format nn.ooo.ooo.ooo.ooo:mmm. Here is an actual example of the result of walking that oid: 258.10.73.138.11:00 00 00 00 00 00. nn=is a variable length numeric string oo is an octet(decimal from 0 - 255) mm is a hex string

I want to compare a string containing an ip address to the results of this walk for an exact match to the "oo" values, I do not care about the rest of the values. For, example I want to check if "10.73.138.11" is equal to 258.10.73.138.11:00 00 00 00 00 00. I guess a different way to explain it is I want to check if the result contains the exact IP address that I need to inquire about. Here is my code so far: 

(@arpResults) = &snmpwalk("$secret\@$gw", "$ipNetToMediaPhysAddress");
foreach $linebuf (@arpResults) {
if ($linebuf =~ /\d+\.$oc1\.$oc2\.$oc3\.$oc4\:*/){
print "$linebuf\n";
my $val;
   ($arpMib, $arpOctetstr) = split(/:/, $linebuf, 2);
   ($distIndex) = split (/\./,$arpMib, 2);
    map { $val .= sprintf("%02x",$_) } unpack "CCCCCC", $arpOctetstr;
    $macFromARP= uc (join(":",unpack("a2 a2 a2 a2 a2 a2",$val)));
    ($ifNamez)=&snmpget("$secret\@$gw", "$ifName\.$distIndex");
    $vlan = $ifNamez; $vlan =~ s/\D//g;
    print "$arpMib; $distIndex:$ifNamez:-$vlan   Value=\t$macFromARP\n
+";
}}

[download]

This is not working out for me because it still matches ips that have a forth octet begining with "11". Help is greatly appreciated.

In reply to Regex to match an IP address that is embedded inside of another string by adamZ88

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