User`s guide

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Detach W-WAN if the link fails
When checked, this checkbox will cause the router to issue the command to detach the
mobile telephone module from the wireless network if it detects that the link has failed. Link
failure is detected by a PPP ping response timer or by a firewall request.
Detach W-WAN between connection attempts
This checkbox controls whether or not the module stays attached to the network if multiple
connection attempts are required to establish a connection. This functionality may be useful
if the connection to the mobile telephone network is not very reliable. Connecting to the
mobile telephone network to send and receive data is a two-stage process. The first stage is
where the module signals its wish to join the network and is accepted by the local cell. The
second stage involves negotiating the link parameters and transferring data. Sometimes it
may be necessary to cleanly detach from the network in order to start the process from the
ground up.
Related CLI commands
Entity
Instance
Parameter
Values
Equivalent Web Parameter
ppp n gprs_sim
0 – 2
0 = Any
1 = SIM1
2 = SIM2
Use SIM, Any, SIM 1, SIM 2
ppp n detach_on_fail OFF,ON Detach W-WAN if the link fails
ppp n detach OFF,ON
Detach W-WAN between
connection attempts
Advanced
Configuration – Network > Interfaces > Advanced> PPP n> Advanced
This section contains PPP configuration parameters that do not normally need changing from
the defaults and are therefore placed in a separate section to reduce clutter on the web
pages.
Metric
This parameter specifies the connected metric of the interface. The default metric of a
connected interface is 1. By allowing the interface to have a higher value (lower priority),
static routes can take precedence over interfaces. For normal operation, leave the value in
this textbox unchanged.
Allow this PP interface to settle for s x 100 milliseconds
On wireless links it is possible that the initial packets sent to the interface by the TCP layer
may be dropped by the network if they are sent too quickly after PPP negotiation has
completed. The value in this textbox defines the delay in notification sent to the TCP layer
that PPP negotiation has completed.
Enable “Always On” mode of this interface
If the “always on” option is available on the interface, checking this checkbox reveals the
following two radio buttons. When this functionality is enabled, the router will automatically
try to reconnect after about 10 seconds if the link becomes disconnected. This parameter
should be enabled when using AODI or W-WAN.
On
Default action, the interface will always try and raise this PPP link.
On and return to service immediately