7.6.1.0 - Force10 Networks

Note: If an interface is configured as a “vlan-stack access” port, the packets are filtered by an
L2 ACL only. The L3 ACL applied to such a port does not affect traffic. That is, existing rules
for other features (such as trace-list, PBR, and QoS) are applied accordingly to the permitted
traffic.
For information on Layer 2 or MAC ACLs, refer to MAC Addressing and MAC Access Lists on page 151.
Assign an IP ACL to an Interface
To pass traffic through a configured IP ACL, you must assign that ACL to a physical or port channel
interface. The IP ACL is applied to all traffic entering a physical or port channel interface and the traffic is
either forwarded or dropped depending on the criteria and actions specified in the ACL.
The same ACL may be applied to different interfaces and that changes its functionality. For example, you
can take ACL "ABCD", and apply it using the in keyword and it becomes an ingress access list. If you
apply the same ACL using the out keyword, it becomes an egress access list. If you apply the same ACL
to the loopback interface, it becomes a loopback access list.
This chapter covers the following topics:
• Configuring Ingress ACLs on page 256
• Configuring Egress ACLs on page 257
• Configuring ACLs to Loopback on page 259
For more information on Layer-3 interfaces, refer to Chapter 9, Interfaces, on page 175.
To apply an IP ACL (standard or extended) to a physical or port channel interface, use these commands in
the following sequence in the INTERFACE mode:
Step Command Syntax Command Mode Purpose
1 interface interface slot/port CONFIGURATION Enter the interface number.
2 ip address ip-address INTERFACE Configure an IP address for the interface,
placing it in Layer-3 mode.
3
4
ip access-group
access-list-name {in | out}
[implicit-permit] [vlan
vlan-range]
ip access-list [standard |
extended] name
INTERFACE Apply an IP ACL to traffic entering or exiting
an interface.
• out: configure the ACL to filter outgoing
traffic. This keyword is supported only on
E-Series.
Note: The number of entries allowed per
ACL is hardware-dependent. Refer to
your line card documentation for detailed
specification on entries allowed per ACL.
INTERFACE Apply rules to the new ACL.
FTOS Configuration Guide, version 7.6.1.0 255