VoIP/(802.11g) ADSL2+ (VPN) Firewall Router
Configuring L2TP VPN in the Branch Office
The IP address 69.1.121.30 is the Public IP address of the router located in head office. If you registered the DDNS (please refer to the DDNS section of this manual), you can also use the domain name instead of the IP address to reach the router.
1
2
3
4
5
6
7
Item | Function |
| |
1 | Connection Name | BranchOffice | |
2 | Dial out |
| |
Server IP Address (or | 69.121.1.33 | ||
| Hostname) | ||
|
| ||
3 | Peer Network IP | 192.168.1.0 | |
Netmask | 255.255.255.0 | ||
| |||
4 | Username | username | |
Password | 123456 | ||
| |||
5 | Auth.Type | Chap(Auto) | |
6 | Idle Timeout | 0 | |
|
|
| |
| IPSec |
| |
7 | Authentication | MD5 | |
Encryption | 3DES | ||
| Perfect Forward Secrecy | None | |
| 12345678 |
Description
Given a name of L2TP connection
Check Dial out
IP address of the head office router (in WAN side)
Head office network
Input username & password to authenticate 
branch office network
Keep as default value in most of the cases.
The connection will be disconnected when there Is no traffic in a predefined period of time. Idle time 0 means the connection is always on.
Enable for enhancing your L2TP VPN security.
Both sites should use the same value.
106
Chapter 4: Configuration
