terewcollege.blogg.se - Cisco switch port security

CISCO SWITCH PORT SECURITY HOW TO
CISCO SWITCH PORT SECURITY FULL
CISCO SWITCH PORT SECURITY MAC

To enable sticky learning, enter the switchport port-security mac-address sticky command.

CISCO SWITCH PORT SECURITY MAC

You can configure an interface to convert the dynamic MAC addresses to sticky secure MAC addresses and to add them to the running configuration by enabling sticky learning. Although sticky secure addresses can be manually configured, it is not recommended. If these addresses are saved in the configuration file, the interface does not need to dynamically relearn them when the switch restarts. These can be dynamically learned or manually configured, stored in the address table, and added to the running configuration.

You can configure MAC addresses to be sticky.

Note If the port shuts down, all dynamically learned addresses are removed.

You can configure a number of addresses and allow the rest to be dynamically configured.

You can allow the port to dynamically configure secure MAC addresses with the MAC addresses of connected devices.

You can configure all secure MAC addresses by using the switchport port-security mac-address mac_address interface configuration command.

If a port is configured as a secure port and the maximum number of secure MAC addresses is reached, when the MAC address of a workstation attempting to access the port is different from any of the identified secure MAC addresses, a security violation occurs.Īfter you have set the maximum number of secure MAC addresses on a port, the secure addresses are included in an address table in one of these ways:

CISCO SWITCH PORT SECURITY FULL

If you limit the number of secure MAC addresses to one and assign a single secure MAC address, the workstation attached to that port is assured the full bandwidth of the port. When you assign secure MAC addresses to a secure port, the port does not forward packets with source addresses outside the group of defined addresses. You can use the port security feature to restrict input to an interface by limiting and identifying MAC addresses of the workstations that are allowed to access the port.

Displaying Port Security Settings Overview of Port Security.

Port Security Guidelines and Restrictions.

Note For complete syntax and usage information for the switch commands used in this chapter, refer to the Catalyst 4500 Series Switch Cisco IOS Command Reference and related publications at It provides guidelines, procedures, and configuration examples.

CISCO SWITCH PORT SECURITY HOW TO

This chapter describes how to configure port security on Catalyst 4500 series switches. Configuring NetFlow Statistics Collection.Port Unicast and Multicast Flood Blocking.

Understanding and Configuring Dynamic ARP Inspection.Configuring DHCP Snooping and IP Source Guard.Understanding and Configuring 802.1X Port-Based Authentication.Understanding and Configuring IP Multicast.Configuring 802.1Q and Layer 2 Protocol Tunneling.Configuring IGMP Snooping and Filtering.Understanding and Configuring EtherChannel.Understanding and Configuring Multiple Spanning Trees.Configuring Layer 2 Ethernet Interfaces.Environmental Monitoring and Power Management.Configuring Supervisor Engine Redundancy using RPR and SSO.Configuring the Switch for the First Time.