Description: The application level protocol of the class.

Application classification allows you to classify based on the
application level protocol.  Each application has a corresponding
'Established' enumeration which specifies that communication can 
not be initiated through this class.  For example, 'telnetEstablished'
specifies that telnet connections can not pass through this class.
'Established' enumerations provide stateful firewall capabily.  For
example, in the following configuration, telnet configurations can
only be initiated from Host B.  Host A can not initiate a telnet
connection.
            +__________________________________+
            |                                  |
Host A _____| telnet class    telnetEstablished|_____ Host B
            | on cbq.1        class on cbq.2   |
            +__________________________________+

Numeric strings, character strings, and combinations of the two
may be used. Valid strings include the following:

Numeric String       Character String
______________       ________________
      1              allTcp
      2              allTcpEstablished
      3              allUdp
      4              allUdpEstablished
      5              ftp
      6              ftpEstablished
      7              telnet
      8              telnetEstablished
      9              http
     10              httpEstablished
     11              dns
     12              dnsEstablished
     13              tftp
     14              tftpEstablished
     15              snmp
     16              snmpEstablished
     17              httpSSL
     18              httpSSLEstablished
     19              smtp
     20              smtpEstablished
     21              bgp
     22              bgpEstablished
     23              slaProbe
     24              slaProbeEstablished
     25              icmp
     26              icmpEstablished
     27              ldap
     28              ldapEstablished
     29              ldapSsl
     30              ldapSslEstablished
     31              nntp
     32              nntpEstablished
     33              ntp
     34              ntpEstablished
     35              pop3
     36              pop3Established
     37              radius
     38              radiusEstablished
     39              isakmp
     40              isakmpEstablished
     41              ssh
     42              sshEstablished
     43              l2tp
     44              l2tpEstablished