Purge MAC Pass-through? Soft limit config?

[irregularexpressions]

Hello,

I've done a few hours of searching, and maybe I'm just having one of those days… I can't find any option to purge the MAC passthrough in the Captive Portal section. Can I log in through the console and delete a file or run a script to do the same?

Also, is there any technical limit (besides hardware) to the number of passthroughs available, and if not, is there a soft limit that I can edit somewhere?

Thanks,
IRE