Draytek Vigor 3100 Series, User Manual, Page: 79 / 122

Vigor3100 Series User’s Guide 73
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. 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 WAN IP address from the
remote router during the IPCP negotiation phase. If the WAN
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 IP address
from the remote router during the IPCP negotiation phase. If the
WAN IP address is fixed by remote side, specify the fixed IP
address here.
Remote Network IP/ Remote Network Mask Add a static router to direct all traffic
destined to this Remote Network IP Address/ Remote Network
Mask through the VPN connection.
More Add a static router to direct all traffic destined to more Remote
Network IP Addresses/ Remote Network Mask through the
VPN connection. This is usually used when you find there are
several subnets behind the remote VPN router.
RIP Direction The option specifies the direction of RIP (Routing Information
Protocol) packets. You can enable/disable one of direction here.
Herein, we provide four options: TX/RX Both, TX Only, RX
Only, and Disable.
RIP Version Select the RIP protocol version. Specify Ver. 2 for greatest
compatibility.
For NAT operation, treat remote sub-net as While communicating with remote subnet,
the router can treat it as private subnet by sending packets with
the router’s private IP address, or treat it as public subnet by
sending packets with the router’s public IP address.
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You can find the summary table of all VPN connections. You may disconnect any VPN
connection by clicking Drop button. You may also aggressively Dial-out by using Dial-out
Tool and clicking
Dial button.