Date: Tue, 25 Feb 2003 23:41:44 -0600 From: Dan Nelson <dnelson@allantgroup.com> To: Adam Lofstedt <adaml@visimation.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: MRTG and aliased IP's Message-ID: <20030226054144.GA67012@dan.emsphone.com> In-Reply-To: <000b01c2dd03$f14f9480$6401a8c0@5adam5> References: <000b01c2dd03$f14f9480$6401a8c0@5adam5>
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In the last episode (Feb 25), Adam Lofstedt said:
> Hi all. I'm running FreeBSD 4.7 with net-snmp-5.0.3_2.
>
> I have two NICs, and one of them has several IP's bound to it through
> ifconfig alias. When I try to run MRTG, it only gives me the statistics
> for one of the aliased IPs (I think).
>
> System: my.domain.com in
> Maintainer: nobody@no.where
> Description: xl0
> ifType: ethernetCsmacd (6)
> ifName:
> Max Speed: 1250.0 kBytes/s
> Ip: xxx.xxx.xxx.xxx (xxx-xxx-xxx-xxx.domain.com)
>
> xxx.xxx.xxx.xxx is the first aliased IP in /etc/rc.conf. Does anyone
> know of a way to get statistics for each individual aliased IP?
>
> With the above output, does anyone know if I am actually getting
> statistics for all bound IP's combined, or for just that one single
> aliased IP?
You're getting stats for the physical interface. I don't think
net-snmp lets you get stats for a single IP. One workaround would be a
get-alias-stats script that pulls info from netstat for a particular IP:
#! /bin/sh
# usage: get-alias-stats <ip>
ip=$1
netstat -ibn -f inet | while read line ; do
set -- $line
if [ "$4" = "$ip" ] ; then
echo $7
echo ${10}
uptime | sed -e "s/.*up \(.*\), .*user.*/\1/"
hostname
fi
done
Call that in mrtg, and pass it the alias IP you're interested in:
Target[alias1]: `get-alias-stats 1.2.3.4`
--
Dan Nelson
dnelson@allantgroup.com
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