Controlled List
The can start at a specific number
TCP
HTTPS
HTTP
FTP (active)
FTP (control)
SSH
SCP
SFTP
Telnet
SMTP
POP3
NetBIOS
IMAP4
LDAP
UDP
DNS name queries
TFTP
Kerberos
SNMP
SNMP trap
NetBIOS
IPsec
L2TP