Is there any better solution than ping -t for monitor status of some VPN clients.
I have set up FreeBSD router with fix public IP address for accepting incoming PPTP VPN connections. The callers are some simple routers with ADSL connections and dynamic IP address.
When VPN caller get connection it got local IP adders which I can ping from my windows work station and also from FreeBSD router, IP addresses are always same for specif caller ID.
Now I want to monitor what happening with callers, Are they connected, to get notification when some host is unreachable and to have log when they are connected and when they had gode, for how long they are connected and things like that. So i can debug my VPN callers and see why some one of callers losing they connections and for how long they are not attented to I can ping them.