Finbar Magee, the network manager, has tasked you to create an access list that will block all traffic from network 221.23.123.0 to the Dublin server IP address 198.150.13.34, causing the least amount of traffic on the network and permitting access to all other routers. Please review the topology and complete the task. The routers have been configured with the following specifications: The routers are named Dublin, BLE, and BLF. RIP is the routing protocol. The clocking is provided on the Serial 0 interface. The secret password on all routers is "cisco".

Inside Tips: Use the management host connected to the Lab C router. Before you attempt this lab -- figure out the commands to complete the task and then input them. Remember that an extended ACL is placed close to the source and a standard ACL is placed close to the destination. Also, bear in mind that a deny statement must be followed by a permit statement. How about applying an ACL to an interface? In or out? As always, "show running-config" - "show access-list #" - "copy running-config startup-config" are your friends. Oh, by the way - one other thing - if you do not have the Desktop's 10-Key down -- then you will be in a world of hurt when it comes to this Lab. Practice for a few minutes each day. Fire up "Notepad" within your Windows accessories and set focus to the application. Then put your middle (longest) finger on the 10-Key numeral "5". Close your eyes. (Can you feel the embossed underline on the "5"?) First finger - hit 7 4 1 0 Middle finger - hit 8 5 2 Third finger - hit 9 6 3 dot Start keying in the numbers. Steal a glimpse of "Notepad" from time to time to check what you think you are entering is in fact the case. If not - find the "underscore" character again and start over. Give it a few days and you will be a whiz!