Q: 130.89.149.61 is scanning my ip
A: To fight bots and abuse on irc.snt.utwente.nl an openproxy scanner will connect to a range of port/protocol combination to test the client ip for common open proxies and/or router which could be abused.
Q: Why is this scanner scanning my IP
A: When a client connects to irc.snt.utwente.nl after the client specified his nick, the open proxy scanner will trigger and connect to the client IP. This is also mentioned in the MOTD which is send to all clients on connect.
Q: can you stop scanning my IP
A: No we can not.