Wireless ADSL Modem User’s Manual
38
PPP Disconnect Timer Configuration
The PPP Disconnect Timer Configuration page enables you to configure what action will
bring a PPP Session out of the Idle state (disconnected state) and reset the Idle Timer.
This is done by specifying criteria contained in packets, namely IP Protocol and Port. The
Idle Timer refers to the Disconnect Timeout, specified on the PPP Configuration page.
The PPP Idle Timer is recommended to be disabled (
Disconnect Timeout
= 0 on PPP
Configuration page) if you want an always on connection.
PPP Disconnect Timer
Configuration
is intended for users who do not desire an always on connection and/or
their ISP charge by connection time.
Enable/Disable Idle Timer Filter
All Traffic will reset Idle Timer (ignore filter below):
Selecting this option will disable
the PPP Idle Timeout filter and allow any traffic through any protocol or port to reset the
idle timer. The only dependency is that the traffic must correspond with the Filter
Application (Inbound and/or Outbound). For example, if
Outbound Traffic Only
is
selected, only traffic in the outbound direction will reset the idle timer. When this option
is selected, all user configured criteria (displayed in the filter table) is bypassed.
Only filtered traffic will reset the Idle Timer (use filter below):
Selecting this option
will enable the PPP Idle Timeout filter and only allow traffic specified in the filter table
to reset the idle timer. The traffic specified in the filter table must also correspond with
the Filter Application selection. For example, outbound traffic with criteria matching that
of the filter table will only be allowed to pass if either
Outbound Traffic Only
or
Inbound and Outbound Traffic
is selected.
Note: PPP reconnect on WAN access must be enabled for the Idle Timer to reconnect
a PPP Session when a request is made from the LAN to the WAN.
Filter Application
The Filter Application consists of three options that determine which sources (LAN
and/or WAN) will be able to reset the Idle Timer and reconnect the PPP session.
•
Inbound Traffic Only:
Selecting this option will allow PPP requests from the
WAN side to reset the
Disconnect Timeout
timer. Note that requests from the WAN
side cannot bring a PPP Session out of Idle state. This is because when a PPP Session
is in Idle state, the connection is down (if they match the filter table criteria).
•
Outbound Traffic Only:
When this option is selected (default), PPP sessions can
only be activated (Idle Timeout) when a request is made on the LAN side to the
