Vigor2950 Series User’s Guide
123
IP Address Assignment
Method (IPCP)
In most environments, you should not change these settings 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 IP address in the field of Fixed IP
Address.
Select Dialing to Dual ISPs if you have more than one ISP. You will be able to dial to both
ISPs at the same time. This is mainly for those ISPs that do not support Multiple-Link PPP
(ML-PPP). In such cases, dialing to two ISPs can increase the bandwidth utilization of the
ISDN channels to 128kbps data speed.
Common Settings Enable Dual ISPs Function - Check to enable the Dual ISPs
function. Require ISP Callback (CBCP) -If your ISP
supports the callback function, check this box to activate the
Callback Control Protocol during the PPP negotiation.
PPP/MP Setup
Link Type – There are three link types provided here for
different purpose.
Link Disable disables the ISDN dial-out
function. Dialup 128Kbps allows you to use both ISDN B
channels for Internet access. Dialup BOD (for detailed
information of configuration, please refer to section 3.10.5)
stands for bandwidth-on-demand. The router will use only one
B channel in low traffic situations. Once the single B channel
bandwidth is fully used, the other B channel will be activated
automatically through the dialup.
PPP Authentication - PAP only allows you to configure the
PPP session to use the PAP protocol to negotiate the username
and password with the ISP. PAP or CHAP can configure 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 be
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 to the ISP will always remain on.
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