A wide variety of errors and problems can occur when VPN testing or setting up a VPN connection. The admin is mainly dealing with three problem areas: VPN tunnel is not established: Tunnel is established, user data are not transmitted (no ping) Tunnel is unstable and breaks off: The following points should make it easier for the admin to find structured troubleshooting for VPN problems. Name resolution / DynDNS: VPN routers are often operated on DSL connections with dynamic IP addresses. The connection is then established via a host name…
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