Logical Operator “!” , “not” a :global variable

RouterOS Scripting
1

See below line for what I am trying to accomplish.

/ip firewall filter add in-interface=$hsinterface dst-port=53 protocol=udp place-before=1 action=drop

Would like to logical NOT this global variable but have had no joy so far. Is it possible to Logical NOT a global variable?

Thanks in advance,

2

just perform the usual string operation when trying to set some value. See scripting section in manual on how to concatenate the value from variable to a string.

3

I think you can do something like this:

/ip firewall filter add in-interface=("!" . $hsinterface) dst-port=53 protocol=udp place-before=1 action=drop
4

Awesome, thanks.

5

cool! thanks