You can enter any number in the Port field (e.g. Keeping the server name with characters works if you use the VLC apps which allow input of a port.Protects the printer or MFP from unauthorized remote access, the confidentiality of data transmitted via the network and services that can be accessed (SSL/TLS, HTTPS, SNMP v3, Port Filtering, IP Address Filtering, Domain Filtering, FIPS 140-2, 802.1X, IPSec, Network Protocol Enable/Disable, WPA2 (Personal and Enterprise) for optional wireless).