C
OMMAND
L
INE
I
NTERFACE
4-120
• This switch supports ACLs for ingress filtering only. However, you can
only bind one IP ACL to any port and one MAC ACL globally for
ingress filtering. In other words, only two ACLs can be bound to an
interface - Ingress IP ACL and Ingress MAC ACL.
The order in which active ACLs are checked is as follows:
1. User-defined rules in the Ingress MAC ACL for ingress ports.
2. User-defined rules in the Ingress IP ACL for ingress ports.
3. Explicit default rule (permit any any) in the ingress IP ACL for ingress
ports.
4. Explicit default rule (permit any any) in the ingress MAC ACL for
ingress ports.
5. If no explicit rule is matched, the implicit default is permit all.
IP ACLs
Table 4-33 Access Control Lists
Command
Groups
Function Page
IP ACLs Configures ACLs based on IP addresses, TCP/UDP
port number, protocol type, and TCP control code
4-120
MAC ACLs Configures ACLs based on hardware addresses, packet
format, and Ethernet type
4-130
ACL Information Displays ACLs and associated rules; shows ACLs
assigned to each port
4-136
Table 4-34 IP ACLs
Command Function Mode Page
access-list ip Creates an IP ACL and enters configuration
mode
GC 4-121
permit, deny Filters packets matching a specified source
IP address
STD-ACL 4-122
permit, deny Filters packets meeting the specified criteria,
including source and destination IP address,
TCP/UDP port number, protocol type, and
TCP control code
EXT-ACL 4-123
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