Dell S6000 FTOS 9.0(2.0) Command Line Reference Guide for the System - Page 166

www.dell.com | support.dell.com operator port port destination address bit count byte (OPTIONAL) Enter one of the following logical operand: • eq = equal to • neq = not equal to • gt = greater than • lt = less than • range = inclusive range of ports (you must specify two port for the port parameter.) Enter the application layer port number. Enter two port numbers if using the range logical operand. Range: 0 to 65535. The following list includes some common TCP port numbers: 23 = Telnet 20 and 21 = FTP 25 = SMTP 169 = SNMP Enter the IPv6 address of the network or host to which the packets are sent in the x:x:x:x::x format followed by the prefix length in the /x format. Range: /0 to /128 The :: notation specifies successive hexadecimal fields of zero. Enter a flag or combination of bits: ack: acknowledgement field fin: finish (no more data from the user) psh: push function rst: reset the connection syn: synchronize sequence numbers urg: urgent field (OPTIONAL) Enter the keyword count to count packets processed by the filter. (OPTIONAL) Enter the keyword byte to count bytes processed by the filter. Defaults Not configured. Command Modes Command History ACCESS-LIST Version 9.0.2.0 Version 8.3.7.0 Introduced on the S6000. Introduced on the S4810. Usage Information Most ACL rules require one entry in the CAM. However, rules with TCP and UDP port operators (gt, lt, range) may require more than one entry. The range of ports is configured in the CAM based on bitmask boundaries; the space required depends on exactly what ports are included in the range. For example, an ACL rule with TCP port range 4000 - 8000 uses 8 entries in the CAM: Rule# Data Mask From To #Covered 1 0000111110100000 1111111111100000 4000 4031 32 2 0000111111000000 1111111111000000 4032 4095 64 3 0001000000000000 1111100000000000 4096 6143 2048 4 0001100000000000 1111110000000000 6144 7167 1024 5 0001110000000000 1111111000000000 7168 7679 512 6 0001111000000000 1111111100000000 7680 7935 256 7 0001111100000000 1111111111000000 7936 7999 64 166 | Access Control Lists (ACL)