Draytek Vigor2930 Series, User Manual

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Vigor2930 Series User’s Guide 144
alone or with IPSec. Select from below:
None - Do not apply the IPSec policy. Accordingly, the VPN
connection employed the L2TP without IPSec policy can be
viewed as one pure L2TP connection.
Nice to Have - Apply the IPSec policy first, if it is applicable
during negotiation. Otherwise, the dial-in VPN connection
becomes one pure L2TP connection.
Must - Specify the IPSec policy to be definitely applied on
the L2TP connection.
Specify CLID or Remote
VPN Gateway You can specify the IP address of the remote dial-in user or
peer ID (should be the same with the ID setting in dial-in
type) by checking the box. Enter Peer ISDN number if you
select ISDN above (This feature is useful for
i model only.).
Also, you should further specify the corresponding security
methods on the right side.
If you uncheck the checkbox , the connection type you select
above will apply the authentication methods and security
methods in the general settings.
User Name This field is applicable when you select ISDN, PPTP or L2TP
with or without IPSec policy above.
Password
This field is applicable when you select ISDN, PPTP or L2TP
with or without IPSec policy above.
VJ Compression VJ Compression is used for TCP/IP protocol header
compression. This field is applicable when you select ISDN,
PPTP or L2TP with or without IPSec policy above.
IKE Authentication
Method This group of fields is applicable for IPSec Tunnels and L2TP
with IPSec Policy when you specify the IP address of the
remote node. The only exception is Digital Signature (X.509)
can be set when you select IPSec tunnel either with or without
specify the IP address of the remote node.
Pre-Shared Key - Check the box of Pre-Shared Key to
invoke this function and type in the required characters (1-63)
as the pre-shared key.
Digital Signature (X.509) – Check the box of Digital
Signature to invoke this function and select one predefined
Profiles set in the
VPN and Remote Access >>IPSec Peer
Identity .
IPSec Security Method This group of fields is a must for IPSec Tunnels and L2TP
with IPSec Policy when you specify the remote node.
Medium- Authentication Header (AH) means data will be
authenticated, but not be encrypted. By default, this option is
active.
High- Encapsulating Security Payload (ESP) means payload
(data) will be encrypted and authenticated. You may select
encryption algorithm from Data Encryption Standard (DES),
Triple DES (3DES), and AES.
Callback Function The callback function provides a callback service only for the
ISDN LAN-to-LAN connection (this feature is useful for
S