User`s manual

User's Manual
Arctic IEC-104 Gateway
Firmware Version 5.0.9 31 Document Version 1.5
Primary server
Primary interface – Interface used to reach the Viola M2M Gateway server.
Primary server IP – IP address of Viola M2M Gateway L2TP server.
Primary server port – L2TP VPN server port (UDP, default 1701).
Primary server gateway – If other gateway than default route is needed to
reach the Viola M2M Gateway
Max duration (0=unlimited) – Maximum duration of the VPN connection. On
primary server, should be set to zero.
Hello interval (secs) – Hello interval for connection keepalive (default 20
seconds).
MTU – MTU for L2TP interface
L2TP username – (usually hostname) - Username for authentication.
L2TP password – L2TP password for authentication.
Backup server
If the primary server cannot be reached, the L2TP VPN connection is
established with backup server.
Routing mode
It is used if routing is needed with L2TP interface. Configuration parameters
are same as in SSH-VPN.
5.2.6 GRE
GRE tunnel enabled – When set to "Yes", Arctic establish automatically GRE
connection
Interface – Interface used to reach the GRE server
GRE server IP – IP address of GRE server
Gw to GRE server* – (ethernet mode) If other gateway than default route is
needed to reach the GRE server.
Local GRE interface IP – (usually eth0 IP) - Local IP used in GRE tunnel
Remote GRE interface IP* –Remote IP used in GRE tunnel
TTL value – Time-to-live value for the interface
Checksum* – checksum value.
Incoming key* – authentication key.
Outgoing key* – Outgoing key for the server
Routing
Routing mode – same as in SSH-VPN and L2TP
Remote network* – same as in SSH-VPN and L2TP
Remote network mask* – same as in SSH-VPN and L2TP
*These are optional, please refer to your GRE server documentation