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