VPN tunnel monitoring

Unanswered Question
Aug 16th, 2008

I have multiple vpn tunnels configured, I wanted to configure a monitoring in such a way that, If one particular vpn tunnel is down, I should be alerted or something like whatsupgold software. All I should be knowing the information what time the tunnel went down & came back up.

I have this problem too.
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I am not aware of any specific software, I personally use SNMP. I log all traps in my syslog server, then filter per messgage type based on:-

Device name, IP address, syslog ID, key words

Then in my syslog server I have a script that alerts me to the specific alerts I want to know about.

I use Linux, and syslog-ng.


merabtavart Fri, 07/22/2011 - 01:06



Advantage   of VPNTTG over other SNMP based monitoring software’s is  following:   Other (commonly used) software’s are working with static OID  numbers,   i.e. whenever tunnel disconnects and reconnects, it gets  assigned a  new  OID number. This means that the historical data, gathered  on the   connection, is lost each time. However, VPNTTG works with VPN  peer’s  IP  address and it stores for each VPN tunnel historical  monitoring  data  into the SQL server and into the RRD (Round Robin  Database) file.



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