Draytek Vigor2920 Series User Manual page 219

Item Description
For IPSec, this is the destination clients IDs of phase 2 quick
mode.
Local Network IP / Local Network Mask - Add a static route
to direct all traffic destined to Local Network IP Address/Local
Network Mask through the VPN connection.
More - Add a static route to direct all traffic destined to more
Remote Network IP Addresses/ Remote Network Mask
through the VPN connection. This is usually used when you
find there are several subnets behind the remote VPN router.
RIP Direction - The option specifies the direction of RIP
(Routing Information Protocol) packets. You can
enable/disable one of direction here. Herein, we provide four
options: TX/RX Both, TX Only, RX Only, and Disable.
From first subnet to remote network, you have to do -
If the remote network only allows you to dial in with single IP,
please choose NAT, otherwise choose Route.
Change default route to this VPN tunnel - Check this box to
change the default route with this VPN tunnel. Note that this
setting is available only for one WAN interface is enabled. It is
not available when both WAN interfaces are enabled.
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Vigor2920 Series User's Guide