How to close open ports on the wan

hello and thanks for helping a newbiew.

i have a usb150, it is connected via wifi to an access point.
it has an ip address of

when i do a port scan there are several ports open.
Port 22 (TCP) Dropbear sshd protocol 2.0|
Port 80 (TCP) lighttpd 1.4.48|
Port 443 (TCP) Tunnel is ssl: lighttpd 1.4.48|

how to close all those ports?


You can try add traffic rule in Advanced->network->firewall->traffic rule