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Prestige 128MH PSTN Router/Hub
5-12
Chapter 5 Remote Node Configuration for LAN-to-LAN
5.2 Leased Line Connection
The Leased Line Modem Connection feature allows you to connect the serial port WAN Port 1 to
a Leased Line Modem (Async). The Connection Type of WAN port 1 must be selected as [Leased]
in Menu 2.1 - Async WAN Port Setup.
Note on PPP Echo Request/Reply
In a Leased Line Connection, a [PPP Echo Request] packet is sent periodically to every link
(WAN Port). This is to verify if the link is up. When your Prestige receives a [PPP Echo Request]
packet, it will send another [PPP Echo Reply] packet back to the sender through the same link.
When [PPP Echo Reply] packets are not received for several times, your Prestige will drop the
link.
Note on Backup Function for Leased Line
You can also enable a Backup function for a Leased Line connection. When all the links in a
Leased Line Connection drop, your Prestige will pick up any available [Switch] WAN port to
place a phone call to establish a Backup connection. When any link (WAN port) in the Leased
Line Connection becomes available again, your Prestige will drop the backup connection. The
Backup function is usually enabled in a Leased Line Connection for LAN-to-LAN applications.
5.2.1 Leased Line Remote Node Profile
From Submenu 11.1.2, select [Leased] in the Connection Type field to go to Submenu 11.1.2 -
Remote Node Profile for Leased Line application, as shown below in Figure 5-4.