Lab 15: Configuring Voice over Frame, Voice over IP, and Voice over ATM

Lab 13: Configuring Frame Relay Networks and Controlling Frame Relay ARP ”Part I

Practical Scenario

We began this chapter stating how prevalent Frame Relay had become in recent years . If you haven't worked on Frame Relay in the field, chances are good that you will. As common as Frame Relay networks are, one thing that isn't common is each network's individual design. Some networks strictly deploy subinterfaces in a point-to-point manner, whereas others might have more of a partially meshed network. This practice lab enables you to configure multiple types of Frame Relay networks.

Lab Exercise

Dr. Evil is in the process of implementing what he refers to as the "Evil Information Freeway" (EIF). The EIF is a Frame Relay network used to connect various factions of the evil empire. Because you are a henchman for the cruel Dr. Evil, you will have additional guidelines to abide by. Use the following parameters as your design guidelines:

• Use the IP subnet 10.10.1.8/29 for the Frame Relay network between the Secret Volcano Lair (sv_lair), Scott's house (scotts_house), and mini-me (mini_me).

• Use the IP subnet of 192.168.1.4/30 for the Frame Relay link between sv_lair and starbucks_90210.

• Use EIGRP as the routing protocol for IP. Use 666 as the autonomous system.

• The frame switch will have a PVC from scotts_house to mini_me. Do not allow any traffic to pass on the PVC directly from scotts_house to mini_me. All traffic must go through the sv_lair first.

• Per Dr. Evil, you can use subinterfaces only on the sv_lair router ”or face the consequences.

Lab Objectives

• Configure the EIF network as depicted in Figure 5-7. Configure IP as denoted in the diagram. The LAN topology type is not important in this lab.

  Figure 5-7. EIF Frame Relay Network

  

• Use Frame Relay as the data link layer protocol on the WAN.

• Prevent dynamic mapping of the PVC between scotts_house and mini_me. Any traceroutes preformed from mini_me to scotts_house, and vice versa, should go through the sv_lair router.

Equipment Needed

• Five Cisco routers, connected through V.35 back-to-back cables or in a similar manner. One router will serve as a frame switch and require four serial ports.

• Four LAN segments, provided through hubs or switches. The LAN segments for mini_me and starbucks_90210 can be substituted with loopbacks.

Physical Layout and Prestaging

• Configure a frame switch to provide the PVCs, as listed in the diagram. See Chapter 1 if you need assistance in configuring a Frame Relay switch. Example 5-19 provides a sample frame switch configuration.

• Connect the hubs and serial cables to the routers as shown in Figure 5-7.

• Connect three Ethernet hubs to form three LAN segments, as shown in Figure 5-7. scotts_house can use either Token Ring or Ethernet for the purposes of this exercise.

Example 5-19 Frame Relay Switch Configuration

  hostname frame_switch   !   frame-relay switching   !   interface Ethernet0   no ip address   shutdown   !   interface Serial0   no ip address   encapsulation frame-relay   no fair-queue   clockrate 148000   frame-relay intf-type dce   frame-relay route 121 interface Serial1 120   frame-relay route 152 interface Serial5 151   !   interface Serial1   no ip address   encapsulation frame-relay   clockrate 148000   frame-relay intf-type dce   frame-relay route 110 interface Serial5 111   frame-relay route 120 interface Serial0 121   frame-relay route 130 interface Serial3 131   !   interface Serial2   no ip address   shutdown   !   interface Serial3   no ip address   encapsulation frame-relay   clockrate 64000   frame-relay intf-type dce   frame-relay route 131 interface Serial1 130   !   interface Serial4   no ip address   shutdown   !   interface Serial5   no ip address   encapsulation frame-relay   clockrate 64000   frame-relay intf-type dce   frame-relay route 111 interface Serial1 110   frame-relay route 151 interface Serial0 152   !