I didn’t explain very well.
The rule was added in [Setup][Startup] of the web interface.
My problem : If a modification is done in rules, iptables flush my addon.
May be you could add in your script something like
insert file etc/??/iptables.local
Either : how to add my addon in you configuration ?
Note : do you thing my rule is the best way to achieve broadcast control ?
Thanks a lot