On 15/05/2012 15:56, Shiv. NK wrote: > Hi List Members, > > i understand that perhaps i should not ask this question here. But you all > are technical. Therefor, has anyone ever monitor the VPN traffic using any > open source tools such as Zabbix/Nagios/Cacti? or any other > > Thanks > > > > > > Can you provide a somewhat less generic term for "the VPN traffic"? If the VPN has an interface, then you can monitor this like you monitor any other interface, yes with Nagios / Cacti and the like...