R U/L/H Series
User Guide, Rev. 00 (May 2015)
26
3.2.13
Open VPN
You can connect your modem to a VPN network or create your own one using OpenVPN software.
It is possible to create up to four VPN connections (tunnels). To view and change settings of any of
tunnels select it from Tunnel configuration list under OpenVPN tab. Then choose if modem should
be server or client and connection type: tun or tap. Tun connection can be single- or multiclient.
Depending on what you choose here, you will later need to enter client/server IP addresses or
network and netmask.
If the device should be server, please enter port on which it should listen for connections (the
default VPN port is 1194, remember to open the port you chose under the firewall tab). Next,
please select network device on which the connection should be held: eth (external RJ45 port) or
ppp (connection via mobile network). It is also necessary to choose network protocol: TCP or UDP
(use the second option if you are not sure what to choose). For tun mode user should also enter
server and client IPs
(we advise you to use addresses from 10.x.x.x pool). For tap mode please enter VPN sub network
address and net mask (for example 10.1.0.0 and 255.255.255.0). In most cases, your device will
reserve first IP address from the pool (that is 10.1.0.1 if you are using 10.1.0.0 network).
If the device is set into client mode, in addition to settings same as those for server, you should
input VPN server's IP in Remote Server IP field and its listening port in the Port field.
After filling in all necessary information user should fill in four certificate fields. The certificates
should be generated on any PC (see VPN online help for more information). The contents of files
should be pasted into appropriate fields of configuration. You can improve security of your VPN
connection by entering TLS key into the TLS key field on every device in VPN network.
The last setting is toggling LZO compression (we advise you to enable it to improve network
communication) and adding extra configuration parameters in Additional configuration field.