Draytek Vigor 2700 User Manual page 96

Vigor 2700 series firewall router
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PPTP
IPSec Tunnel
L2TP with ...
User Name
Password
PPP Authentication
VJ compression
IKE Authentication
Method
90
Enable PING to Keep Alive 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
disconnect 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).
If you want to connect two networks with ISDN connection,
please select ISDN radio button to build ISDN dial-out
connection to the server. You should set up Link Type and
identity like User Name and Password for the authentication of
remote server. You can further set up Callback (CBCP)
function below. This feature is useful for i model only.
Build a PPTP VPN connection to the server through the Internet.
You should set the identity like User Name and Password
below for the authentication of remote server.
Build a IPSec VPN connection to the server through Internet.
Build a L2TP VPN connection through the Internet. You can
select to use L2TP 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-out VPN connection
becomes one pure L2TP connection.
Must: Specify the IPSec policy to be definitely applied on the
L2TP connection.
This field is applicable when you select PPTP or L2TP with or
without IPSec policy above.
This field is applicable when you select PPTP or L2TP with or
without IPSec policy above.
This field is applicable when you select PPTP or L2TP with or
without IPSec policy above. PAP/CHAP is the most common
selection due to wild compatibility.
This field is applicable when you select PPTP or L2TP with or
without IPSec policy above. VJ Compression is used for
TCP/IP protocol header compression. Normally set to Yes to
improve bandwidth utilization.
This group of fields is applicable for IPSec Tunnels and L2TP
with IPSec Policy.
Pre-Shared Key-Input 1-63 characters as pre-shared key.
Digital Signature (X.509) - Select one predefined Profiles set
in the VPN and Remote Access >>IPSec Peer Identity.
Vigor2700 Series User's Guide

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