Stop voucher customers from sharing their connection to other devices through their phone's hotspot.

Packets the router sends to customers get TTL 1. The customer's phone still has internet, but when the phone forwards a packet to another device the TTL becomes 0 and the packet is dropped.

• Do not use it for customers with their own router/AP at home (put their IPs in the exceptions), since the internet behind their router would stop working.
• Customers who know how can work around it by changing the TTL on their device; this reduces sharing, it does not remove it completely.

How to use: Copy the script, open Winbox → New Terminal, paste. Or Download .rsc, upload it in Files, then run /import file-name=anti-tethering.rsc.

RouterOS v6 / v7 · added 10 November 2026