Digi TransPort WR31 - Page 457

Configure Virtual Private Networking (VPN) IPsec parameters
Digi TransPort WR Routers User Guide 457
Source Port Normal/Variable
These radio buttons select the source port for the L2TP tunnel. Setting this setting to Normal
uses the default port number, 1701. If set to Variable, this setting uses a random source port
value.
Name
The name that identifies the router during the negotiation phase when establishing an L2TP
tunnel.
Authentication Off/Secret
The radio buttons select whether or not to use authentication. This is normally set to Off as most
host systems require using IPsec over L2TP tunnels. If Authentication is set to On,
authentication is enabled and the Secret parameter becomes relevant. The value in the text box
contains a passphrase shared with the host. The router uses this passphrase if the remote host
requests authentication and Authentication is set to Off here.
Related CLI commands
Entity Instance Parameter Values Equivalent web parameter
l2tp n listen off, on Act as a listener only
l2tp n swap_io off, on Enable server mode
l2tp n remhost Valid IP address
a.b.c.d
Initiate connections to a.b.c.d
l2tp n backremhost Valid IP address
a.b.c.d
Use a.b.c.d as a backup
l2tp n aot off, on Bring this tunnel up All the time/On demand
l2tp n nocallto 0-4294967296 Bring this tunnel down if it is idle for h hrs, m
mins, s secs
l2tp n window 1-7
Default=4
L2TP Window Size
l2tp n ll_ent <blank>, PPP, ETH Route UDP packets over interface x,y
l2tp n ll_add 0-2147483647 Route UDP packets over interface x,y
l2tp n rnd_srcport off, on Source Port
l2tp n name Up to 30
characters
Name
l2tp n auth off, on Authentication Off/Secret
l2tp n secret Up to 80
characters
Authentication Off/Secret