Draytek Vigor2620 LTE Series User Manual page 223

Dial-Out Settings
Vigor2620 Series User's Guide
WAN1 Only /WAN2 Only/ LTE Only - While connecting,

the router will use WAN1/WAN2/WAN3 or LTE/WAN4 as
the only channel for VPN connection.
WAN1 Only: Only establish VPN if WAN2 down - If

WAN2 failed, the router will use WAN1 for VPN
connection.
WAN2 Only: Only establish VPN if WAN1 down - If

WAN1 failed, the router will use WAN2 for VPN
connection.
Netbios Naming Packet
Pass – click it to have an inquiry for data transmission

between the hosts located on both sides of VPN Tunnel
while connecting.
Block – When there is conflict occurred between the

hosts on both sides of VPN Tunnel in connecting, such
function can block data transmission of Netbios Naming
Packet inside the tunnel.
Multicast via VPN - Some programs might send multicast
packets via VPN connection.
 Pass – Click this button to let multicast packets pass
through the router.
Block – This is default setting. Click this button to let

multicast packets be blocked by the router.
Call Direction - Specify the allowed call direction of this
LAN-to-LAN profile.
Both:-initiator/responder

Dial-Out- initiator only

Dial-In- responder only.

Always On-Check to enable router always keep VPN
connection.
Idle Timeout: The default value is 300 seconds. If the
connection has been idled over the value, the router will
drop the connection.
Enable PING to keep IPsec tunnel alive - This function is to
help the router to determine the status of IPsec VPN
connection, especially useful in the case of abnormal VPN
IPsec tunnel disruption. For details, please refer to the note
below. Check to enable the transmission of PING packets to a
specified IP address.
This function is used to handle abnormal IPsec VPN
connection disruption. It will help to provide the state of a
VPN connection for router's judgment of redial. Normally, if
any one of VPN peers wants to disconnect the connection, it
should follow a serial of packet exchange procedure to
inform each other. However, if the remote peer disconnects
without notice, Vigor router will by no where to know this
situation. To resolve this dilemma, by continuously sending
PING packets to the remote host, the Vigor router can know
the true existence of this VPN connection and react
accordingly. This is independent of DPD (dead peer
detection).
PING to the IP - Enter the IP address of the remote host that
located at the other-end of the VPN tunnel.
Type of Server I am calling - PPTP - Build a PPTP VPN
connection to the server through the Internet. You should set
the identity like User Name and Password below for the
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