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CISCO MAC ADDRESS ACCESS CONTROL FOR MAC
CISCO MAC ADDRESS ACCESS CONTROL SOFTWARE

However, the clear counters command does not remove any IP Accounting MAC Address entries. Because the IP Accounting MAC Address entries are stored per interface, the clear counters command clears the number of bytes and packets for each IP Accounting MAC Address entry in the output of show interface mac-accounting. router# clear counters Ĭlears all the interface counters.The appropriate information for the type number arguments. To display information for a single interface, use

CISCO MAC ADDRESS ACCESS CONTROL FOR MAC

router# show interface mac-accountingĭisplays information for all interfaces configured for MAC accounting.

- output performs accounting based on the destination MAC address on transmitted packets.

- input performs accounting based on the source MAC address on received packets.

router(config-if)# ip accounting mac-address, where:.

Notable commands for configuring, verifying, and troubleshooting IP Accounting MAC Address are as follows:

On the Cisco 12000 router, it is supported only by the 3-port Gigabit Ethernet line cards.

It is supported on all routers, including the MSFC, but not the RSM.

(CEF), distributed Cisco Express Forwarding (dCEF), flow, and optimum switching. It works in conjunction with Cisco Express Forwarding

It is supported on Ethernet, FastEthernet, FDDI, and VLAN interfaces.

IP Accounting MAC Address was introduced in IOS 11.1CC.

CISCO MAC ADDRESS ACCESS CONTROL SOFTWARE

The following devices and Cisco IOS Software releases support IP Accounting MAC Address: The MIB contains 32-bit and 64-bit SNMP counters.For more details about SNMP configuration, see Chapter 4. To retrieve the collection results via SNMP, you need to enable SNMP on the network elementįirst. However, all configuration changes must be done via CLI, because the CISCO-IP-STAT-MIB Collection data is accessible via CLI and SNMP.The maximum number of entries per physical interface and per direction (incoming or outgoing) is 512.There is no concept of a checkpoint database.When IP Accounting MAC Address is turned off, header compression is enabled. When IP Accounting MAC Address is enabled, header compression is turned off so that the MAC information can be extracted from.A time stamp is recorded (or updated) when the last packet is sent or received.Only LAN interfaces and subinterfaces (Ethernet, FastEthernet, FDDI, and VLAN) are supported.Inbound and outbound traffic statistics are collected per MAC address.The principles of IP Accounting MAC Address can be summarized as follows:

To keep addresses from not being taken into account, you should constantly check the number of available entries in the networkĮlement’s local database and clear entries if it’s getting close to 512. After the maximum is reached, subsequent MAC addresses are ignored. Input and an additional 512 MAC addresses for output traffic.

The maximum number of MAC addresses that can be stored at the network element for each physical interface is 512 entries for MAC address in case of an attack with faked IP addresses. It also helps security administrators identify a sender’s So it can be used to identify a specific user for usage-based billing. IP Accounting MAC Address collects individual MAC addresses, Peers at Layer 2 exchange points, such as an Internet peering point. This feature helps the operator determine how much traffic is exchanged with various Stamp for the last packet received or sent. Packets and bytes for IP traffic on LAN interfaces, based on the source and destination MAC addresses. IP Accounting MAC Address calculates the total number of Of IP addresses, and there is no concept of a checkpoint database. However, MAC addresses are collected instead IP Accounting MAC Address is comparable to the IP Accounting (Layer 3) feature.