Are you sure? I see quite a few posts for folks putting in custom iptable rules.I think the problem would be that while you could use webmin to view the current rules you wouldn't be able to make any permanent changes (just guessing). Unlike a Linux distribution the router doesn't keep the firewall config in a single file but dynamically generates it based on NVRAM variables.
https://doxfer.webmin.com/Webmin/Linux_Firewall#The_Linux_Firewall_module
No I'm not. Like I said, it's just a guess based on the way the router creates the rules. Where are these posts you've seen? I don't remember seeing any in this forum about using webmin to manipulate iptables.Are you sure? I see quite a few posts for folks putting in custom iptable rules.
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