I’m a complete noob with Cisco routers and I am hoping to find a way to block Spotify from our company firewall. Our bandwidth has been suffering severely over the last month and we have our suspicions this is the reason.
Device is Cisco ADSM 5.2
ASA Version 7.2
I am aware of the following :
-Spotify own a range of addresses (all of 18.104.22.168/22)
-Spotify tries to connect on port 4070. If that is blocked, it will then try port 443, if that’s blocked, then port 80
-Spotify can use a proxy, so you need to block socks and https access to the ap.spotify.com address
Can anyone point me in the right direction for what I need to do here? Bear in mind I may need to be spoon fed commands here. I’m not even sure if this is possible, as surely we can’t block ports 80 and 443?