Brocade Communications Systems 6650 TCP Flags edge port security, User account configuration on

TCP Flags - edge port security

The method1 parameter specifies the primary authentication method. The remaining optional method parameters specify additional methods to try if an error occurs with the primary method. A method can be one of the values listed in the Method Parameter column in the following table.

TABLE 11	Authentication method values
Method parameter		Description
line		Authenticate using the password you configured for Telnet access. The Telnet password is
		configured using the enable telnet password… command. Refer to “Setting a Telnet
		password” on page 13.
enable		Authenticate using the password you configured for the Super User privilege level. This
		password is configured using the enable super-user-password…command. Refer to
		“Setting passwords for management privilege levels” on page 14.
local		Authenticate using a local user name and password you configured on the device. Local
		user names and passwords are configured using the username… command. Refer to “Local
		user account configuration” on page 21.
tacacs		Authenticate using the database on a TACACS server. You also must identify the server to
		the device using the tacacs-servercommand.
tacacs+		Authenticate using the database on a TACACS+ server. You also must identify the server to
		the device using the tacacs-servercommand.
radius		Authenticate using the database on a RADIUS server. You also must identify the server to
		the device using the radius-servercommand. Refer to “RADIUS security” on page 41.
none		Do not use any authentication method. The device automatically permits access.

TCP Flags - edge port security

The edge port security feature works in combination with IP ACL rules, and supports all 6 TCP flags present in the offset 13 of the TCP header:

•+- urg = Urgent

•+- ack = Acknowledge

•+- psh = Push

•+- rst = Reset

•+- syn = Synchronize

•+- fin = Finish

TCP flags can be combined with other ACL functions (such as dscp-marking and traffic policies), giving you greater flexibility when designing ACLs.

The TCP flags feature offers two options, match-all and match-any:

•Match-any- Indicates that incoming TCP traffic must be matched against any of the TCP flags configured as part of the match-any ACL rule. In CAM hardware, the number of ACL rules will match the number of configured flags.

•Match-all- Indicates that incoming TCP traffic must be matched against all of the TCP flags configured as part of the match-all ACL rule. In CAM hardware, there will be only one ACL rule for all configured flags.

60	Brocade ICX 6650 Security Configuration Guide
	53-1002601-01