Cisco WS-C2960-24TC-S Software Guide - Page 543
no mac access-list extended, con terminal, mac access-list extended, permit, show access-lists
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Chapter 28 Configuring QoS Configuring Standard QoS Beginning in privileged EXEC mode, follow these steps to create a Layer 2 MAC ACL for non-IP traffic: Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Command Purpose configure terminal Enter global configuration mode. mac access-list extended name Create a Layer 2 MAC ACL by specifying the name of the list. After entering this command, the mode changes to extended MAC ACL configuration. {permit | deny} {host src-MAC-addr mask | any | host dst-MAC-addr | dst-MAC-addr mask} [type mask] Specify the type of traffic to permit or deny if the conditions are matched, entering the command as many times as necessary. • For src-MAC-addr, enter the MAC address of the host from which the packet is being sent. You specify this by using the hexadecimal format (H.H.H), by using the any keyword as an abbreviation for source 0.0.0, source-wildcard ffff.ffff.ffff, or by using the host keyword for source 0.0.0. • For mask, enter the wildcard bits by placing ones in the bit positions that you want to ignore. • For dst-MAC-addr, enter the MAC address of the host to which the packet is being sent. You specify this by using the hexadecimal format (H.H.H), by using the any keyword as an abbreviation for source 0.0.0, source-wildcard ffff.ffff.ffff, or by using the host keyword for source 0.0.0. • (Optional) For type mask, specify the Ethertype number of a packet with Ethernet II or SNAP encapsulation to identify the protocol of the packet. For type, the range is from 0 to 65535, typically specified in hexadecimal. For mask, enter the don't care bits applied to the Ethertype before testing for a match. Note When creating an access list, remember that, by default, the end of the access list contains an implicit deny statement for everything if it did not find a match before reaching the end. end Return to privileged EXEC mode. show access-lists [access-list-number | access-list-name] Verify your entries. copy running-config startup-config (Optional) Save your entries in the configuration file. To delete an access list, use the no mac access-list extended access-list-name global configuration command. This example shows how to create a Layer 2 MAC ACL with two permit statements. The first statement allows traffic from the host with MAC address 0001.0000.0001 to the host with MAC address 0002.0000.0001. The second statement allows only Ethertype XNS-IDP traffic from the host with MAC address 0001.0000.0002 to the host with MAC address 0002.0000.0002. Switch(config)# mac access-list extended maclist1 Switch(config-ext-macl)# permit 0001.0000.0001 0.0.0 0002.0000.0001 0.0.0 Switch(config-ext-macl)# permit 0001.0000.0002 0.0.0 0002.0000.0002 0.0.0 xns-idp ! (Note: all other access implicitly denied) OL-8603-04 Catalyst 2960 Switch Software Configuration Guide 28-43
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