zeek change opcua port

[gustavoberman]

Hello there!

I have been trying the whole day to understand how to change the ports of zeek to match opcua protocol (https://github.com/cisagov/icsnpp-opcua-binary). I'm using standalone, airgap, 2.4.140.

We use a nonstandard port: 53530 tcp,
I can see captured traffic, but it does not understand what it is

Have been trying with redef to no avail
Tried with:
-Showing advanced configuration, in the redef configuration, all this options but none worked and zeek died:

OPCUA_Binary::ports = 53530/tcp;
ICSNPP_OPCUA_Binary::ports = 53530/tcp;
OPCUA_Binary::likely_server_ports = 53530/tcp;
ICSNPP_OPCUA_Binary::likely_server_ports = 53530/tcp;

Any help?
Thanks!