I tried to add a traffic rule to allow ICMP answer but it doesn't work.
How do I configurate the FW to allow the RUT240 to answer IPv4 ICMP (echo/ping) requests on the LTE/Mobile WAN IP?
The connection is configurated to receive a DHCP from the Mobile NW - the supplier has set the line with fixed public IP and no FW.
Is it possible to disable the FW completely and to check the connection and/or to use a Cisco FW on the LAN side?
I found 3 general settings to allow, reject or deny on input, output and forward, but it doesn't seem to change anything at all.