Configuring Named Mac Extended Acls - Cisco Catalyst 3550 series Software Configuration Manual
Multilayer switch
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- Reference manual (58 pages) ,
- Datasheet (21 pages) ,
- Manual (19 pages)
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Configuring Named MAC Extended ACLs
This is a an example of a log for an extended IP ACL:
01:24:23:%SEC-6-IPACCESSLOGDP:list ext1 permitted icmp 10.1.1.15 -> 10.1.1.61 (0/0), 1
packet
01:25:14:%SEC-6-IPACCESSLOGDP:list ext1 permitted icmp 10.1.1.15 -> 10.1.1.61 (0/0), 7
packets
01:26:12:%SEC-6-IPACCESSLOGP:list ext1 denied udp 0.0.0.0(0) -> 255.255.255.255(0), 1
packet
01:31:33:%SEC-6-IPACCESSLOGP:list ext1 denied udp 0.0.0.0(0) -> 255.255.255.255(0), 8
packets
Note that all logging entries for IP ACLs start with
depending on the kind of ACL and the access entry that has been matched.
This is an example of an output message when the log-input keyword is entered:
00:04:21:%SEC-6-IPACCESSLOGDP:list inputlog permitted icmp 10.1.1.10 (Vlan1
0001.42ef.a400) -> 10.1.1.61 (0/0), 1 packet
A log message for the same sort of packet using the log keyword does not include the input interface
information:
00:05:47:%SEC-6-IPACCESSLOGDP:list inputlog permitted icmp 10.1.1.10 -> 10.1.1.61 (0/0), 1
packet
Configuring Named MAC Extended ACLs
You can filter non-IP traffic on a VLAN and on a physical Layer 2 interface by using MAC addresses
and named MAC extended ACLs. The procedure is similar to that of configuring other extended named
ACLs. You can use a number to name the access list, but MAC access list numbers from 700 to 799 are
not supported.
Note
Named MAC extended ACLs cannot be applied to Layer 3 interfaces.
For more information about the supported non-IP protocols in the mac access-list extended command,
refer to the command reference for this release.
Though visible in the command-line help strings, appletalk is not supported as a matching condition for
Note
the deny and permit MAC access-list configuration mode commands nor is matching on the EtherType
of any SNAP-encapsulated packet with a nonzero Organizational Unique Identifier (OUI).
Beginning in privileged EXEC mode, follow these steps to create a named MAC extended ACL:
Command
Step 1
configure terminal
Step 2
mac access-list extended name
Catalyst 3550 Multilayer Switch Software Configuration Guide
28-26
Chapter 28
%SEC-6-IPACCESSLOG
Purpose
Enter global configuration mode.
Define an extended MAC access list using a name.
Configuring Network Security with ACLs
with minor variations in format
78-11194-09
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Troubleshooting
