Re: How to increment a MAC Address?

Something like this perhaps?

$" = ':'; 
for (my $int = 1; $int <= 999999999999; $int++) { 
    my $leading = sprintf("%012d", $int);
    my @split = ($leading =~ /../g);
    print "@split\n";
}
[download]

Comment on Re: How to increment a MAC Address? Download Code

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Re^2: How to increment a MAC Address? by rob_au (Abbot) on May 23, 2005 at 09:33 UTC
The components of a MAC address, when expressed as a group of six octet values, are expressed as hexadecimal values (eg. FE:DC:BA:01:23:45) - Your code does not account for this with the maximal octet value of 99 (decimal) provided by your code. Although in stating this, I should note that this is a problem too with the problem description in the original thread post. `perl -le "print unpack'N', pack'B32', '00000000000000000000001000000000'"`	[reply]
Re^3: How to increment a MAC Address? by imperl (Novice) on May 23, 2005 at 10:30 UTC
yes, i know 99 is not valid, just that im simulating something out here, where i require the value as 99 and not in hex.	[reply]
Re^4: How to increment a MAC Address? by dcd (Scribe) on May 23, 2005 at 20:35 UTC
if $_ holds your string, then this should increment it `$_ = join ":",unpack "A2"x6, substr( ('0' x 12 . (1 + join '',split /:/,$_))), -12)` [download]	[reply] [d/l]
Re^2: How to increment a MAC Address? by aditya.singh (Acolyte) on Jun 16, 2005 at 12:24 UTC
You code prints: 00:00:00:00:00:99 00:00:00:00:01:00 00:00:00:00:01:01 OP wants: 00:00:00:00:00:99 00:00:00:00:01:99 00:00:00:00:02:99 and so on. Note: Once the pair of digit reaches 99, it does not roll back to 00.	[reply]
Re^3: How to increment a MAC Address? by dorward (Curate) on Jun 16, 2005 at 12:57 UTC
I've just tested it and it increments as expected (i.e. it does get past 1).	[reply]


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