Check ping on the gateway, DNS servers and an IP address on the Internet.
The status is indicated by the colour of the led WAN, LAN and PCI (wifi) .
WAN led is turned continuously when the error condition, if the connection is OK, the led blinks in auto -mode. (The color settings of the normal State agrees with by setting the LED colors in LuCI Rainbow.)
It is certainly possible to indicate a network error only with the LED colour of the wan. The function of each State, you can check the temporary removal of the character the negation of “!”.
Logical flowchart
Similarly, the schema of LED color warning
/etc/cron.d/leds-control
# zmena intensity svetla den - noc
15 07 * * * root rainbow intensity 6
00 10 * * * root rainbow intensity 15
30 15 * * * root rainbow intensity 6
30 17 * * * root rainbow intensity 1
# check every minute
#* * * * * root /root/connCheck.sh > /dev/null 2>&1
# check every 3 minute
*/3 * * * * root /root/connCheck.sh > /dev/null 2>&1
/root/connCheck.sh - EDITED 1.2.2017 … fixed a bug in the IF - condition … has been added in parenthesis in the negated condition (former if !ping xxxx … is BAD)
#!/bin/sh
# check the connection to the Internet
rainbow pwr disable
sleep 1
# --- indications of activity ---
rainbow pwr D000F0 enable
sleep 0.5
rainbow pwr disable
sleep 0.5
rainbow pwr D000F0 enable
sleep 0.5
rainbow pwr disable
sleep 0.5
rainbow pwr D000F0 enable
sleep 0.5
rainbow pwr disable
sleep 0.5
rainbow pwr D000F0 enable
sleep 0.5
rainbow pwr disable
sleep 0.5
rainbow pwr D000F0 enable
sleep 0.5
rainbow pwr disable
sleep 1
rainbow pwr 4d0000 enable
# --- check connection gateway, dns, internet ---
# check gateway - wan, lan, pci - red b50000
if !(ping -c 1 10.109.54.193)
then
rainbow wan b50000 enable
rainbow lan b50000 enable
rainbow pci2 b50000 enable
rainbow pci3 b50000 enable;
# check DNS - wan, lan - orange db4e00
elif !(ping -c 1 10.108.10.108) && !(ping -c 1 8.8.8.8)
then
rainbow wan db4e00 enable
rainbow lan db4e00 enable
rainbow pci2 216300 auto
rainbow pci3 216300 auto;
# check internet - wan, pci - purple d000f0
elif !(ping -c 1 213.192.1.145)
then
rainbow wan d000f0 enable
rainbow lan 4e4d0e auto
rainbow pci2 d000f0 enable
rainbow pci3 d000f0 enable;
# if all ready - standard color
else
rainbow wan 0118e4 auto
rainbow lan 4e4d0e auto
rainbow pci2 216300 auto
rainbow pci3 216300 auto;
fi