Re: LTM - Monitor with "arping" relies on ARP-Cache

Hi, I'm going to reply myself... I've finally have it working like a charm.... changes that I've made:

Monitor definition: 

• delete all variables previously defined
• Arguments: $F5_MONITOR_ADDRESS
• Alias Service Port: 1  <---- this is because if you define the node in the pool as "* you cannot assign a monitor which service port is also "*" so you have to define and invented port.

And in System  ››  File Management : External Monitor Program File List: 

!/bin/bash
IP=$1
INTERFACE="VLAN_1234"  #Statically defined
# clear arp cache table to avoid false positives 
tmsh delete /net arp $IP
# execute the command:
RESULT=$(arping -c 1 -w 2 -I $INTERFACE $IP 2>&1)
# evaluate the result
if echo "$RESULT" | grep -q "Received 1 response(s)"; then
    echo "UP"
else
fi

And that's all, Iv'e applied the new monitor to the pool definition and the nodes inside the pool inherit the pool monitor.

Regards