You can enable or disable this functionality at an interface level. The Loop Protect functionality detects the unwanted physical loops in your network. You must explicitly enable DHCP Trust (trust dhcp) in the port-security-profile (if applied to a port) to allow these DHCP messages from valid devices. By default, the DHCP Trust setting in a port-security-profile is to filter (block) these OFFER and ACK messages. You can enable DHCP trust on any interface. The following IPv4 DHCP messages are filtered on an interface configured not to trust DHCP. The DHCP trust functionality provides support to filter the IPv4 DHCP packets from the unauthorized devices. Unicast RA messages with multiple extension headers. The following Unicast RA messages are not filtered by enabling the RA guard:
RA message with multiple extension headers The following RA messages are filtered by enabling the RA guard: The port can be re-activated after the configured time by configuring the auto-recovery option. By enabling, the RA packets received on the interface are dropped and the port can be shutdown based on the interface configuration. The RA guard feature is disabled by default. The Router Advertisement (RA) Guard functionality analyzes the RAs and filters out RA packets sent by unauthorized devices. You can now filter the unauthorized devices to send the control packets, restrict the number of MACs allowed on the interface, and detect unwanted loops in the network when not running spanning-tree protocol. This release of ArubaOS Mobility Access Switch supports Port Security functionality which provides network security at Layer 2. Dynamically locked addresses can be converted to statically locked addresses.Port Security Overview Port Security Overview You can manually specify a list of static MAC addresses for a port. Static MAC addresses are not eligible for aging. Dynamically locked MAC addresses are eligible to be learned by another port. Dynamically locked MAC addresses are aged out if another packet with that address is not seen within the age-out time. Note: If you want to set a specific MAC address for a port, set the dynamic entries to 0, then allow only packets with a MAC address matching the MAC address in the static list.ĭynamically locked addresses can be converted to statically locked addresses. Only frames with an allowable source MAC addresses are forwarded. After the limit is reached, additional MAC addresses are not learned.
#What is switchport port security mac address sticky software
The maximum number of MAC addresses is platform dependent and is given in the software Release Notes. You can specify the maximum number of MAC addresses that can be learned on a port. Port security implements two traffic filtering methods, dynamic locking and static locking. You can enable port security on a per port basis.Packets that have a matching MAC address (secure packets) are forwarded all other packets (unsecure packets) are restricted. You can limit the number of MAC addresses on a given port.The port security feature offers the following benefits: When a link goes down, all dynamically locked addresses are freed. Port Security helps secure the network by preventing unknown devices from forwarding packets.