Cisco Catalyst 250 Series User Manual

•
Drop all other IP packets
•
Drop all other MAC packets
Switch(config)# vlan access-map drop-all-default 10
Switch(config-access-map)# match ip address tcp-match
Switch(config-access-map)# action forward
Switch(config-access-map)# exit
Switch(config)# vlan access-map drop-all-default 20
Switch(config-access-map)# match mac address good-hosts
Switch(config-access-map)# action forward
Configuration Examples for Using VLAN Maps in Your Network
Example: Wiring Closet Configuration
In a wiring closet configuration, routing might not be enabled on the switch. In this configuration, the switch
can still support a VLAN map and a QoS classification ACL. Assume that Host X and Host Y are in different
VLANs and are connected to wiring closet switches A and C. Traffic from Host X to Host Y is eventually
being routed by Switch B, a Layer 3 switch with routing enabled. Traffic from Host X to Host Y can be
access-controlled at the traffic entry point, Switch A.
Figure 7: Wiring Closet Configuration
If you do not want HTTP traffic switched from Host X to Host Y, you can configure a VLAN map on Switch
A to drop all HTTP traffic from Host X (IP address 10.1.1.32) to Host Y (IP address 10.1.1.34) at Switch A
and not bridge it to Switch B.
First, define the IP access list http that permits (matches) any TCP traffic on the HTTP port.
Switch(config)# ip access-list extended http
Switch(config-ext-nacl)# permit tcp host 10.1.1.32 host 10.1.1.34 eq www
Catalyst 2960-X Switch Security Configuration Guide, Cisco IOS Release 15.0(2)EX
OL-29048-01 189
Configuring IPv4 ACLs
Configuration Examples for Using VLAN Maps in Your Network

Cisco Catalyst 250 Series Specifications

General

Brand	Cisco
Model	Catalyst 250 Series
Category	Switch
Language	English