Hi, in my country, when using a cellular modem as internet source and the credit is insufficient, sometimes ISP send a notification using a webpage that forcely open on android device, not sure about other countries,
my question is :
how to mimic that behaviour on openwrt router using a specific webpage ? maybe only for specific client when they reach specific usage limit
i have neighbors kid using my wifi connection, i'm not good at banning it, so i thought i'll use that trick to make the neighbors think i'm out of credit by mimick the ISP notification webpage to a local hosted web page.
i don't feel good restricting him clearly, i was thinking restricting him without they know that i'm restricting.
i also curious how to achieve this, perhaps like captiveportal but without wifi (i'm using router with low memory and storage but has working wifi as dumb-ap , connected to openwrt on tv-box which has large memory and storage but unsupported wifi chip)