[olug] Bandwidth Metering

[Charles Bird]

aha, I was thinking about the same idea as Sam Tetherow has stated, but didnt know how to make it work.

But ya, basiclly i would like to have a record of usage for each IP address (currently 16 soon 32)
yes route goes thru the "lil linux router that could"
and into Proliant hell. :)

Thankyou guys for the input.



> ----- Original Message -----
> From: "Sam Tetherow" <tetherow at shwisp.net>
> To: "Omaha Linux User Group" <olug at olug.org>
> Subject: Re: [olug] Bandwidth Metering
> Date: Mon, 05 Jun 2006 18:28:07 -0500
> 
> 
> This may not be the most elegant solution, but it's worked for me.
> You'll want to rotate the log files every once in a while or date them
> by setting $IPACCT_DIR to something meaningful like YYYYMM or YYYYMMDD.
> 
> Hope it helps.
> 
> For each IP to be monitored:
> 
> iptables -A IPACCT -i $EXT -d IPADDR
> iptables -A IPACCT -o $EXT -s IPADDR
> 
> Where EXT is the external interface and IPADDR is the ip address to be
> monitored
> 
> Every 5 minutes run:
> #!/usr/bin/perl
> # This is a simple script that runs every 5 minutes and records how many
> bytes have
> # been sent and received foreach IP
> # The output is appended to $IPACCT_DIR/$IPADDRESS
> 
> $IPACCT_DIR="/var/log/ipacct";
> 
> open(STREAM, '/sbin/iptables -L IPACCT -n -x -v -Z |');
> $ts=time();
> while(<STREAM>) {
> if
> (/^\s*(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s*$/) {
> # Didn't use all the values, but you might want them.
> my ($pkt, $bytes, $proto, $opt, $in, $out, $source, $destination)=($1,
> $2, $3, $4, $5, $6, $7, $8);
> if ($source eq "0.0.0.0/0") {
> $downstream{$destination}=$bytes;
> }
> if ($destination eq "0.0.0.0/0") {
> $upstream{$source}=$bytes;
> }
> }
> }
> foreach $ip (keys %downstream) {
> # print "$ip\t$ts\t$downstream{$ip}/$upstream{$ip}\n";
> open(LOG, ">>$IPACCT_DIR/$ip");
> print LOG "$ts\t$downstream{$ip}\t$upstream{$ip}\n";
> close(LOG);
> }
> 
> 
> Charles Bird wrote:
> > anyone know of a good method of measuring bandwidth usage per IP 
> > within a given time frame?
> >
> > Wondering who has done this and if there are recommendations from whomever.
> > I am assuming this would be a lil linux router task. I am not 
> > looking to shape or limit, just monitor usage per IP.
> > Thx in advance.
> >
> >
> >
> 
> 
> --
>     Sam Tetherow
>     Sandhills Wireless
> 
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> OLUG at olug.org
> http://lists.olug.org/mailman/listinfo/olug

>


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