Sophos UTM – STEAM Game System Access rules

1:
Add 4 SERVICE DEFS for the following ports:
- UDP 27000:27015 inclusive (Game client traffic)
- UDP 27015:27030 inclusive (HLTV)
- TCP 27014:27050 inclusive (Steam downloads)
- UDP 4380
Add to your FIREWALL Allow OUTBOUND rules
2:
If using Web Filtering, make and exception for content type (eg allow .EXE etc) for the following URLS:
- steamcontent.com
- steampowered.com
- steam.cdn.on.net
- steam.com