Vigor2910 Series User’s Guide
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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).
ISDN
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.
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 authentication of remote server.
IPSec Tunnel
Build an IPSec VPN connection to the server through Internet.
L2TP with …
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.
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.
PPP Authentication
This field is applicable when you select ISDN, PPTP or L2TP
with or without IPSec policy above. PAP/CHAP is the most
common selection due to wild compatibility.
VJ compression
This field is applicable when you select ISDN, 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.
IKE Authentication
Method
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)
– Click this radio button to invoke
this function and select one predefined in the X.509 Peer ID
Profiles (set from
VPN and Remote Access>>IPSec Peer
Identity
).
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