[VPN] Re: Cisco IPSec Tunnel Bandwidth Utilization

[Longar, Dennis]

MRTG should be able to handle the case you are talking about below.
 
It has several options for tracking an interface or connection.
 
When you run cfgmaker you can specify a ifref options which can
track by IP or interface name etc.
 
Here are the options that MRTG can track on.  Hopefully one of these
will work for you.
 
Options:
     --ifref=nr        interface references by Interface Number (default)
     --ifref=ip                         ... by Ip Address
     --ifref=eth                        ... by Ethernet Number
     --ifref=descr                      ... by Interface Description
     --ifref=name                       ... by Interface Name
     --ifref=type                       ... by Interface Type
 
 
Thanks!
 
-Dennis

-----Original Message-----
From: Paul Lundgren [mailto:paul.lundgren at gmail.com]
Sent: Tuesday, August 29, 2006 4:24 PM
To: vpn at lists.shmoo.com
Subject: [VPN] Cisco IPSec Tunnel Bandwidth Utilization


I have a Cisco ASA 5520 supporting multiple VPNs - both remote-access and
Lan-to-Lan.  I would like to monitor the bandwidth utilization on a single
IPSec Lan-to-Lan tunnel.  The particular tunnel I want to monitor is quite
unstable and each time the VPN goes down and re-establishes itself the
interface index changes thus changing the SNMP OID used to measure the tx
and rx bytes for that respective tunnel.  Is anyone familiar with a network
management app that can handle this case and continue to monitor a tunnel
over the long-term?  I'm currently using MRTG and can write a script to try
to accomplish this myself but I'd prefer a cleaner solution since my coding
skills lean towards the novice side. 

Thanks,
-Paul


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