PLANET ADE-3100 - Manual (Page 25)

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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.
5.4.3.1 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.
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.
5.4.3.2 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 (default): When this option is selected, PPP sessions can only
be activated (Idle Timeout) when a request is made on the LAN side to the WAN side.
The disconnect timer will reset when outbound traffic is detected (if they match the filter
table criteria).
Inbound and Outbound Traffic: Selecting this will allow both WAN and LAN source
packets to reset the idle timer.
5.4.3.3 Filter Details
The table displayed in the Filter Details section of the page shows all the current Idle
Filters. Traffic must match the criteria of one of these filters in order to cause an Idle
Timeout, unless All Traffic will reset Idle Timer is selected. As a default and starting