smackdab has asked for the wisdom of the Perl Monks concerning the following question:
Hi All, I was looking for a somewhat standard solution to my need to enhance my hosts list. I would like to support: hosts, ipaddr, ipaddr range, and I think CIDR.
I never knew what the "/xxx" meant when I saw it, still don't know anything about subnets, other than the network folks might want to use then instead of ip address ranges...
I have been looking at NetAddr::IP and I think it will work. I did find that if you specify some IP addresses, the CPU will peg 99% and take 500Megs+ of ram (before ctrl+c) YIKES This might not be safe to use...(my guess is that I specified an invalid range, but since it could happen by accident, I don't want my program to take all the memory, I'd rather it crashed !
What does everyone else use?
Here is the test program I saw...top $hosts line takes TONS of ram and bottom line works
I am open to any suggestions on the format to use
I never knew what the "/xxx" meant when I saw it, still don't know anything about subnets, other than the network folks might want to use then instead of ip address ranges...
I have been looking at NetAddr::IP and I think it will work. I did find that if you specify some IP addresses, the CPU will peg 99% and take 500Megs+ of ram (before ctrl+c) YIKES This might not be safe to use...(my guess is that I specified an invalid range, but since it could happen by accident, I don't want my program to take all the memory, I'd rather it crashed !
What does everyone else use?
Here is the test program I saw...top $hosts line takes TONS of ram and bottom line works
I am open to any suggestions on the format to use
use NetAddr::IP; #$hosts= '172.21.3.128-172.21.3.140;10.1.1.1;192.168.0.1/8'; #$hosts= '172.21.3.128-172.21.3.140;10.1.1.1;10.0.0.0/30'; push @hosts, split ';', $hosts; for my $cidr( @hosts ) { print "$cidr\n"; my $n = NetAddr::IP->new( $cidr ); for my $ip( @{$n->hostenumref} ) { print "\t", $ip->addr, "\n"; } }
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Re: ip range for config files
by zengargoyle (Deacon) on Nov 05, 2003 at 07:55 UTC | |
Re: ip range for config files
by Roger (Parson) on Nov 05, 2003 at 05:46 UTC | |
by smackdab (Pilgrim) on Nov 05, 2003 at 05:56 UTC | |
Re: ip range for config files
by ehdonhon (Curate) on Nov 05, 2003 at 05:58 UTC | |
by smackdab (Pilgrim) on Nov 05, 2003 at 06:04 UTC | |
by ehdonhon (Curate) on Nov 05, 2003 at 06:15 UTC | |
by smackdab (Pilgrim) on Nov 05, 2003 at 07:14 UTC |
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