Special Router Configuration Options

Overview of Special Configuration Options

Special Options List

This chapter describes advanced configuration parameters that cannot be configured via the web GUI. These options must be set either via SSH or by editing a startup script, which can be configured through the GUI.

Item	Description
PPP_TOLERATE_NO_SIM	When set to 1, module restarts are disabled if connectivity is enabled but SIM 1 is missing. After inserting SIM 1, the router must be rebooted manually.
PPP_TOLERATE_NO_SIM2	Same as above, but for SIM 2 (if available).
PPP_TOLERATE_NO_SIGNAL	When set to 1, module restarts are disabled when the signal is lost. Note that SIM switching will not function in this mode.
PPP_TOLERATE_NO_SIGNAL2	Same as above, but for SIM 2 (if available).

Summary of Special Router Configuration Options

How to Apply Special Options

To apply these special configuration options, you must directly edit the appropriate configuration file stored on the router. These files are located in the /etc directory and are named using the pattern settings.*. You need to locate the file that contains the desired parameter, which can usually be inferred from the parameter name. For example, a configuration parameter beginning with PPP_ will be found in the settings.ppp file. See an example script on the next page.

Configuration by a Script

The following example shows how to set a special option using a shell script. The script below sets PPP_REGISTRATION_TOUT to 5 minutes:

#!/bin/sh

# Parameters
CONFIG_FILE="/etc/settings.ppp"
PARAM_NAME="PPP_REGISTRATION_TOUT"
PARAM_VALUE="300"

# Check if the file exists
if [ ! -f "$CONFIG_FILE" ]; then
    echo "File $CONFIG_FILE does not exist!"
    exit 1
fi

# Check if the parameter exists in the file
if grep -q "^${PARAM_NAME}=" "$CONFIG_FILE"; then
    # Parameter exists, update its value
    sed -i "s/^${PARAM_NAME}=.*/${PARAM_NAME}=${PARAM_VALUE}/" "$CONFIG_FILE"
    echo "Updated $PARAM_NAME to $PARAM_VALUE"
else
    # Parameter doesn't exist, add it to the end of the file
    echo "${PARAM_NAME}=${PARAM_VALUE}" >> "$CONFIG_FILE"
    echo "Added $PARAM_NAME=$PARAM_VALUE to the file"
fi

# Verify the change
if grep -q "^${PARAM_NAME}=${PARAM_VALUE}$" "$CONFIG_FILE"; then
    echo "Verification successful: $PARAM_NAME is now set to $PARAM_VALUE"
else
    echo "Verification failed: $PARAM_NAME was not properly set to $PARAM_VALUE"
    exit 1
fi