Configure Virtual Private Networking (VPN) OpenVPN parameters
Digi TransPort WR Routers User Guide 462
OpenVPN parameters
You can use OpenVPN to connect to the router for secure management and access services on the
LAN side of the TransPort router, such as corporate messaging services, file servers and print servers
for example. OpenVPN is a full-featured SSL VPN which implements OSI layer 2 or 3 secure network
extension using the industry standard SSL/TLS protocol, supports flexible client authentication
methods based on certificates, smart cards, and/or username/password credentials, and allows
user or group-specific access control policies using firewall rules applied to the VPN virtual
interface. OpenVPN is not a web application proxy and does not operate through a web browser.
The Digi TransPort implementation of OpenVPN can be configured as an OpenVPN server, shown
above, or as an OpenVPN client, connecting to an OpenVPN server.
On TransPort firmware, OpenVPN has been implemented as an interface. That means when an
OpenVPN tunnel connects, an interface is added to the routing table. Static routes can be
configured to point to an OpenVPN instance, and additionally, OpenVPN may learn routes from the
tunnel peer and add these routes to the routing table for the duration of the OpenVPN tunnel. As
each tunnel appears just like an interface, support for features like the firewall, NAT, IGMP, etc are
the same as for other interfaces like PPP and ETH.
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