User`s guide

222
Link socket interface x,y
If configured, OpenVPN sockets will only be allowed to/from this interface and the routing
table will be ignored. When set to Auto, the OpenVPN sockets will use the routing table to
identify the best interface to use.
Get link socket source address from this interface x,y
The values in these two text boxes define the interface (Auto,PPP,ETH) and the instance
number of the interface to use as a source address for IP sockets when not using the
interface that the socket was created on.
Even when this parameter is not configured, the IP address from the interface on which the
socket was created will be used. The source address specified in this parameter will only be
used if it will cause the traffic to match an Eroute and therefore be sent using IPsec or GRE.
MTU
This parameter is used to set the Maximum Transmit Unit for the OpenVPN instance, in
bytes. The default setting is 1400.
Metric
This parameter specifies the connected metric, changing this value will alter the metric of
dynamic routes created automatically for this interface.
NAT mode
This parameter is used to select whether IP Network Address Translation (NAT) or Network
Address and Port Translation (NAPT) are used at the Ethernet interface. When the
parameter is set to disabled, no NAT will take place.
IP analysis
When enabled, the un-encapsulated IP traffic will be captured into the analyser trace.
Firewall
The Firewall parameter is used to turn Firewall script processing “On” or “Off” for this
interface.
IGMP
This IGMP parameter is used to enable or disable the transmission and reception of IGMP
packets on this interface. IGMP is used to advertise members of multicast groups. If IGMP is
enabled, and a member of a multicast group is discovered on this interface, multicast
packets for this group received on other interfaces will be sent out this interface.
Include in RIP advertisements
When checked, this checkbox will cause the router to include this static route to be included
in RIP advertisements.
Automatically connect interface
If enabled, this OpenVPN instance will be considered as an always on interface.
Server mode (listener)
This parameter configures the OpenVPN instance to listen for inbound OpenVPN sockets.
Link socket port
The default port used by OpenVPN is 1194. If a different or non-standard port number is
used, specify it here.
Link socket protocol
OpenVPN can use TCP or UDP as the transport protocol. Select the required protocol here.
Use plain string for TLS Auth Key
Select this when TLS Authoorization key is a string.
TLS auth password / Confirm TLS auth password