Currently armbianmonitor -n does not detect vlan interfaces correctly.
This is because of an incorrect egrep -o which filters out the parent interface name:
network interface: 100
instead of
network interface: eth0.100
Cascading into:
armbianmonitor: line 1095: eth0. - 0 : syntax error: invalid arithmetic operator (error token is ". - 0 ")
Fixed by changing the egrep logic to filter out the last field of route -n output.
Also fixes a timer issue by moving the timer start to after the interface selection.
time controller adjustment: -2.43
/usr/bin/armbianmonitor: line 1128: read: -2.43: invalid timeout specification
af90b3237e