Draytek Vigor2000, Руководство пользователя

Страница: 48 / 129

3-10
Basic Setup & Internet Access
- Dialup 64Kbps
Use one ISDN B channel for Internet access.
- Dialup 128Kbps
Use both ISDN B channels for Internet access.
- Dialup BOD
BOD stands for bandwidth-on-demand. The router will
use only one B channel under low traffic situations. Once
the single B channel bandwidth is filled, the other B chan-
nel will be dialed automatically. For more detailed BOD
parameter settings, refer to the "
Advanced Setup" group
-> " Call Control and PPP/MP Setup" .
PPP Authentication: two types of authentication
- PAP Only
Set the PPP session to use the PAP protocol to negotiate
the username and password with the ISP.
- PAP or CHAP
Set the PPP session to use the PAP or CHAP protocols
to negotiate the username and password with the ISP.
Idle Timeout: Idle timeout means the router will disconnect
after being idle for a preset amount of time. The default is 180
seconds. If you set the time to 0, the ISDN connection will
remain always connected to the ISP.
IP Address Assignment Method (IPCP)
Fixed IP and Fixed IP Address:
In most environments you should not change the default set-
tings as most ISPs provide a dynamic IP address for the router
when it connects to the ISP. If your ISP provides a fixed IP
address, check
"Yes " and enter the assigned IP address in the
Fixed IP Address field.