Chapter 8: Using the Command Line Interface370Security Configuration CommandsA security configuration command begins withsecurity.Firewall ControlYou can manage firewall control features through the CLI. The firewallcontrol lets you set up rules that permit or disallow access to the EMXdevice from a specific or a range of IP addresses.An IPv4 firewall configuration command begins withsecurityipAccessControl ipv4.An IPv6 firewall configuration command begins withsecurityipAccessControl ipv6.Modifying Firewall Control ParametersThere are different commands for modifying firewall control parameters.IPv4 commandsEnable or disable the IPv4 firewall control feature:config:#security ipAccessControl ipv4 enabled Determine the default IPv4 firewall control policy for inboundtraffic:config:#security ipAccessControl ipv4 defaultPolicyIn Determine the default IPv4 firewall control policy for outboundtraffic:config:#security ipAccessControl ipv4 defaultPolicyOut IPv6 commandsEnable or disable the IPv6 firewall control feature:config:#security ipAccessControl ipv6 enabled Determine the default IPv6 firewall control policy for inboundtraffic:
