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 ftpdata
21 ftp
23 telnet
25 smtp
53 domain
67 bootps
68 bootpc
69 tftp
70 gopher
79 finger
80 http
110 pop3
119 nntp
123 ntp
161 snmp
162 snmptrap
179 bgp
389 ldap
500 isakmp
636 ldapSsl
1701 l2tp
1812 radius