Sample Basic Acls For Copp Traffic Classification - Cisco WS-SUP32-GE-3B - Supervisor Engine 32 Software Configuration Manual

Defining Traffic Classification

Sample Basic ACLs for CoPP Traffic Classification

This section shows sample basic ACLs for CoPP classification. In the samples, the commonly required
traffic is identified with these ACLs:
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This example shows how to define ACL 120 for critical traffic:
Router(config)# access-list 120 remark CoPP ACL for critical traffic
This example shows how to allow BGP from a known peer to this switch's BGP TCP port:
Router(config)# access-list 120 permit tcp host 47.1.1.1 host 10.9.9.9 eq bgp
This example shows how to allow BGP from a peer's BGP port to this switch:
Router(config)# access-list 120 permit tcp host 47.1.1.1 eq bgp host 10.9.9.9
Router(config)# access-list 120 permit tcp host 10.86.183.120 host 10.9.9.9 eq bgp
Router(config)# access-list 120 permit tcp host 10.86.183.120 eq bgp host 10.9.9.9
This example shows how to define ACL 121 for the important class:
Router(config)# access-list 121 remark CoPP Important traffic
This example shows how to permit return traffic from TACACS host:
Router(config)# access-list 121 permit tcp host 1.1.1.1 host 10.9.9.9 established
This example shows how to permit SSH access to the switch from a subnet:
Router(config)# access-list 121 permit tcp 10.0.0.0 0.0.0.255 host 10.9.9.9 eq 22
This example shows how to allow full access for Telnet to the switch from a host in a specific subnet and
police the rest of the subnet:
Router(config)# access-list 121 deny tcp host 10.86.183.3 any eq telnet
Router(config)# access-list 121 permit tcp 10.86.183.0 0.0.0.255 any eq telnet
This example shows how to allow SNMP access from the NMS host to the switch:
Router(config)# access-list 121 permit udp host 1.1.1.2 host 10.9.9.9 eq snmp
This example shows how to allow the switch to receive NTP packets from a known clock source:
Router(config)# access-list 121 permit udp host 1.1.1.3 host 10.9.9.9 eq ntp
This example shows how to define ACL 122 for the normal traffic class:
Router(config)# access-list 122 remark CoPP normal traffic
This example shows how to permit switch-originated traceroute traffic:
Router(config)# access-list 122 permit icmp any any ttl-exceeded
Router(config)# access-list 122 permit icmp any any port-unreachable
This example shows how to permit receipt of responses to the switch that originated the pings:
Router(config)# access-list 122 permit icmp any any echo-reply
Catalyst Supervisor Engine 32 PISA Cisco IOS Software Configuration Guide, Release 12.2ZY
33-24
ACL 120—Critical traffic
ACL 121—Important traffic
ACL 122—Normal traffic
ACL 123—Explicitly denies unwanted traffic
ACL 124—All other traffic
Chapter 33 Configuring Denial of Service Protection
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