Draytek 2900 - Manual (Page 107)

Vigor2900 Series User’s Guide 101
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 PPTP or L2TP w/ or
w/out IPSec policy above.
Password This field is applicable when you select PPTP or L2TP w/ or
w/out IPSec policy above.
VJ Compression VJ Compression is used for TCP/IP protocol header
compression. This field is applicable when you select PPTP or
L2TP w/ or w/out IPSec policy above.
IKE Pre-Shared Key It is applicable for IPSec Tunnels and L2TP with IPSec Policy
when you Specify ISDN CLID (for i model only) or Remote
VPN Gateway Peer ISDN Number (for i model only) or Peer
VPN Server IP. Click the IKE Pre-Shared Key button and
input 1-63 characters as pre-shared key.
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 dial-in user (this feature is useful for i model only). The
router owner will be charged the connection fee by the telecom.
Check to enable Callback function-Enables the callback
function.
Callback number-The option is for extra security. Once
enabled, the router will ONLY call back to the specified
Callback Number.
Callback budget- By default, the callback function has
limitation of callback period. Once the callback budget is
exhausted, the function will be disabled automatically.
Callback Budget (Unit: minutes)- Specify the time budget for
the dial-in user. The budget will be decreased automatically per
callback connection. The default value 0 means no limitation of
callback period.
My WAN IP This field is only applicable when you select PPTP or L2TP w/
or w/out IPSec policy above. The default value is 0.0.0.0, which
means the Vigor router will get a PPP IP address from the
remote router during the IPCP negotiation phase. If the PPP IP
address is fixed by remote side, specify the fixed IP address
here.
Remote Gateway IP This field is only applicable when you select PPTP or L2TP w/
or w/out IPSec policy above. The default value is 0.0.0.0, which
means the Vigor router will get a remote Gateway PPP IP
address from the remote router during the IPCP negotiation