The range of UDP or TCP destination ports that match this class. The value '0' 'any port'. Numeric strings, character strings, and combinations of the two may be used. Valid strings include, but are not limited to the following: Numeric String Character String ______________ ________________ 20 ftp_data 21 ftp 23 telnet 25 smtp 53 domain 67 bootps 68 bootpc 69 tftp 70 gopher 79 finger 80 http 119 nntp 123 ntp 161 snmp 162 snmptrap 179 bgp