| 11.2 |  | Access Control Lists (ACLs) |
| 11.2.1 |  | Standard ACLs |

| Standard ACLs check the source address of IP packets that are routed. The comparison will result in either permit or deny access for an entire protocol suite, based on the network, subnet, and host addresses. For example, packets coming in Fa0/0 are checked for source address and protocol. If they are permitted, the packets are routed through the router to an output interface. If they are not permitted, they are dropped at the incoming interface. The standard version of the access-list global configuration command is used to define a standard ACL with a number in the range of 1 to 99 (also from 1300 to 1999 in recent IOS). In the first ACL statement, notice that there is no wildcard mask. In this case where no list is shown, the default mask is used, which is 0.0.0.0. This means that the entire address must match or this line in the ACL does not apply and the router must check for a match in the next line in the ACL.. The full syntax of the standard ACL command is: Router(config)#access-list access-list-number {deny | permit} source [source-wildcard ] [log] The no form of this command is used to remove a standard ACL. This is the syntax: Router(config)#no access-list access-list-number The table shows descriptions of the parameters used in this syntax.
| Lab Activity Lab Exercise: Configuring Standard Access Lists In this lab, the student will configure and apply a standard ACL to permit or deny specific traffic.
| Lab Activity Lab Exercise: Standard ACLs In this lab, the student will plan, configure, and apply a standard ACL to permit or deny specific traffic. The student will then test the ACL to determine if the desired results were achieved.
| Lab Activity e-Lab Activity: Configuring a Standard Access List In this lab, the students will plan, configure, and apply a standard ACL to permit or deny specific traffic and test the ACL to determine if the desired results were achieved.
| Lab Activity e-Lab Activity: Standard ACL In this lab, the students will configure a standard access-control list for the local router "Rome".
| Lab Activity e-Lab Activity: Standard ACL In this lab, the students will configure a standard access-control list for the local router "Athens".
| Lab Activity e-Lab Activity: Standard ACL In this lab, the students will configure a standard access-control list for the local router "Bucharest".
| Lab Activity e-Lab Activity: Standard ACL In this lab, the students will configure a standard access-control list for the local router "Sofia".
| Web Links access-list Command http://www.cisco.com/en/US/products/sw/ iosswrel/ps1835/ products_command_reference_ chapter09186a00800873c8.html#1072438