Cisco IOS Software, C3550 Software (C3550-IPSERVICESK9-M), Version 12.2(40)SE, RELEASE SOFTWARE (fc3)


stewie#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
stewie(config)#int fa0/9
stewie(config-if)#ip acc
stewie(config-if)#ip access-group block_dos ?
  in  inbound packets

stewie(config-if)#ip access-group block_dos