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how make failover work

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i have the Digi Connect IT 4 and i would like to know if there is any way to make it work like this :

when it is connected to the lan it is not accessible from the LTE and only when the lan is down the LTE is accessible .
if it is possible please let me know how i can accomplish that ?
asked Jan 31 in Digi Connect Cellular by asherbersh New to the Community (0 points)

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1 Answer

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Hi and welcome to Digi Forums!

The functionality you request would need to implemented via a script. Do you mean Eth WAN and not LAN? If you did mean LAN then changes references from wan to lan where found.

System > Scheduled Tasks > Custom Scripts > add a new script.
Name = Disable_modem_if_Eth_WAN_UP
Run mode = Interval
Interval = 5m # This is 5 mins, reduce if needed
Run single = Enabled

Script to use
#!/bin/sh

# disable the cellular modem connection if WAN is up
# enable the cellular modem connection if WAN is down

wan_iface_name='wan'
modem_iface_name='modem'
wan_iface_state="$(runt get network.interface.$wan_iface_name.ipv4.up)"

case "$wan_iface_state" in
1) # up
config set network.interface.$modem_iface_name.enable false
;;
0) # down
config set network.interface.$modem_iface_name.enable true
;;
*) # unknown state
accns_log w config "custom test: unknown state for $wan_iface_name interface ($wan_iface_state)"
;;
esac
end of script

Log script output = Enabled
Log script errors = Enabled


Potentially you'll also need this script to monitor the Eth WAN interface, but that will depend on your network topology. http://ftp1.digi.com/support/documentation/accelerated/config_examples/WAN_Cont_Test_Failover.pdf

For any further help or investigation on that issue, please review our support options on our website: https://www.digi.com/support and mail our support team at tech.support@digi.com


Thank you

Ben
Digi Technical Support Engineer
answered Feb 3 by bengartland Seasoned Professional (169 points)
Hi,

how to base the failover on ICMP reply and not on interface status?

Thank you,
Tomer.
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