CSX200 Configuration with QuickSET68 CSX200 Family User’s GuideProtocol — Use this pull-down list to select the upper layer protocol that you want to apply to theaccess control filter. Each access control filter can apply to traffic for all protocols included in theTCP/IP suite, or just to traffic for a single protocol.Permission — Use this pull-down list to set the permissions for the specified control filter.Options for this field include permit, deny, permit bi-directional, or deny bi-directional. Choosingpermit allows the specified packets to be forwarded, while choosing deny blocks the specifiedpackets. Choosing permit bi-directional or deny bi-directional either permits or denies traffic toand from a specified source or destination.Port — Enter the port number in this field to create an access control filter that applies only totraffic for a specific TCP or UDP service. Table 9 and Table 10 supply a list of the standardizedTCP and UDP port numbers.Table 9 TCP Services Port NumbersTCP Services Port # TCP Services Port #FTP (File Transfer Protocol) -data 20 Host Name (NIC Host Name Server) 101FTP 21 X.400 Mail Service 103Telnet (Terminal Connection) 23 X.400 Mail Sending 104SMTP (Simple Mail Transport Protocol) 25 AUTH Authentication Service 113Time 37 UUCP-PATH Service 117Host Name Server 42 NNTP (USENET News Transfer Protocol) 119Domain Name Server 53 PWDGEN (Password Generator Protocol) 129Finger 79 NETBIOS-SSN (NETBIOS Session Service) 139HTTP 80 HTTPS (Secure) 443DCP (Device Control Protocol) 93Table 10 UDP Services Port NumbersUDP Service Port # UDP Service Port #Time 37 Bootstrap Protocol Client 68Host Name Server 42 Trivial File Transfer 69