05.19.08
ACCESS LISTS - Standard access lists & Extended access lists
Access lists are configured on the Ethernet or serial ports of a router to control incoming or outgoing traffic. Access lists configured on Ethernet port controls the incoming traffic while those configured on serial ports control the outgoing traffic.
They are of 2 types.
- Standard access lists
- Extended access lists
For standard access lists, the list numbers are from 1-99, where as for extended access list, they are from 100-199. The difference between the two lies in the variety of fields in the packet that are compared for matching.