Acls And Routed Packets - Cisco Catalyst 3550 series Software Configuration Manual

Chapter 28 Configuring Network Security with ACLs

ACLs and Routed Packets

Figure 28-8
in this order:
1.
2.
3.
4.
Figure 28-8 Applying ACLs on Routed Packets
Host A
(VLAN 10)
78-11194-09
shows how ACLs are applied on routed packets. For routed packets, the ACLs are applied
VLAN map for input VLAN
Input router ACL
Output router ACL
VLAN map for output VLAN
VLAN 10
map
Frame
VLAN 10
Catalyst 3550 switch
Input Output
router router VLAN 20
ACL ACL
Routing function
Packet
Catalyst 3550 Multilayer Switch Software Configuration Guide
Using VLAN Maps with Router ACLs
map
Host B
(VLAN 20)
VLAN 20
28-39