block all IM

RouterOS General
1

hi all,
i want the way of how to block IM ports to some of my customers, i want that happens by the user name.
i use hotspot and pppoe server :open_mouth: !!!

2

Find the ports that are used by IM programs, and block them in firewall.

ip firewall filter

3

ok, thanks my friend, but i want to do that to some of my customers only or by ip
please give me a quick example.

4 
/ip firewall filter add chain=forward dst-port=135 dst-address=2.2.2.2 protocol=tcp action=drop
/ip firewall filter add chain=forward dst-port=135 src-address=2.2.2.2 protocol=tcp action=drop

these rules would block everything TCP port 135 To and From the customer IP 2.2.2.2