Dial To Dual Isps - Draytek VigorIPPBX 2820 Series User Manual

IP Address Assignment
Method (IPCP)
5 . 1 1 . 4 D i a l t o
5 . 1 1 . 4 D i a l t o
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
PPP/MP Setup
VigorIPPBX 2820 Series User's Guide
D u a l I S P s
D u a l I S P s
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.
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.
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.
There are three link types provided here
Link Type
–
for different purpose.
dial-out function. Dialup 128Kbps allows you to use both
ISDN B channels for Internet access. Dialup BOD 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
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Link Disable disables the ISDN