Learning by Doing: CISCO Certified Network ... - SCN Research

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00:21:08: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1, changed state to up kissane#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 32/32/32 ms kissane#sh ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default U - per-user static route, o - ODR Gateway of last resort is 192.168.1.1 to network 0.0.0.0 C 192.168.200.0/24 is directly connected, Loopback0 C 192.168.1.0/24 is directly connected, BRI0/0 S 192.168.100.0/24 [1/0] via 192.168.1.1 S* 0.0.0.0/0 [1/0] via 192.168.1.1 Challenge Lab or Supplemental Activities: 1. Repeat the lab using Class “B” addresses. 2. Repeat the lab using Class “A” addresses. 3. Try using PAP as an encapsulation for PPP. Try HDLC. So what have I learned here? In this lab you have learned how to set up the bare minimum requirements for an ISDN BRI connection using the ADTRAN ISDN simulators. In later labs you will learn more about “real-world” applications using PPP, ISDN SPID’s and Dial on Demand Routing (DDR). Guest Router Name Derivation Timothy Kissane was a software developer for a company called System Management Arts Incorporated (“SMARTS”). When he was hired he signed a confidentiality agreement that he would never reveal any of the source code he developed for a program called “InCharge” (a network monitoring program). After he was fired a couple of the competitors to SMARTs received email messages from “Joe Friday” via Hotmail offering the source code for InCharge for sale. These were forwarded from the competitors back to SMARTS (aha! They are all in it together!). He was arrested in February 2002, released on bail and is awaiting trial on charges of “theft of a trade secret” in connection with his prior employment. 419
ISDN Operation and Troubleshooting Objective: This paper lab explains the fundamentals of ISDN operation. Here we will start with the theory of ISDN operation, then break it down a little more in-depth layer by layer, discuss troubleshooting commands for ISDN, and then finish by looking at how to decipher the debug and show command outputs of working and non-working ISDN lines. ISDN Theory of Operation: ISDN, as a WAN technology, is fairly simple: once you know how to set it up and use it. It is a technology that has been around for a while now and is used for main WAN connections or, more likely, as backup connections for other WAN technologies. Once you understand how ISDN operates you should be more likely to understand what you need to set up on your routers and how to troubleshoot it. ISDN operation is a simple (I think it is…) three-step operation that correlates nicely with the lower three layers of the OSI model: 1. ISDN DDR generates “interesting” traffic PHYSICAL 2. ISDN call is made DATA LINK 3. PPP handshaking NETWORK Then you are ready to go! Let’s look at each step a bit more in-depth. Layer-By-Layer ISDN Operation: Physical Layer As we discuss the steps they will be numbered and correlated to the router configuration. Use this to correlate the discussion (“the theory”) with the implementation (“learning by doing”). (1) Of course no traffic will pass through a physical interface if it is physically “shut down” so we must also configure our interfaces to be up during this phase. (2) ISDN uses Dial on Demand Routing (DDR) to establish the first phase of connection at the physical layer. We set up access control lists in our configuration that determine “what is” and “what is not interesting traffic.” This will decide whether or not we move on to the second phase. Finally you may see the term “spoofing” used during troubleshooting or checking the status of an ISDN connection. The router “spoofs” (fakes) a connection during the set up phases to imitate an active state, otherwise the next steps could not take place. Some commands that must be used to set up a basic ISDN connection include: router(config)#int bri0/0 (1) router(config-if)#ip address 192.168.1.1 255.255.255.0 (1) router(config-if)#no shut (1) router(config-if)#dialer-group 1 (2) router(config-if)dialer map ip 192.168.1.2 name routerB 5552000 (2) router(config)#dialer-list 1 protocol ip permit (2) 420
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Learning by Doing: CISCO Certified
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About the Author Matthew Basham is
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Acknowledgements Preface Table of C
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Basic Access Control Lists 342 Exte
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Searching CISCO for CCNA Test infor
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Figure 5—Scroll down to CCNA exam
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Objective: This lab is designed to
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g. If you really have some time to
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C:\ |___CDDROM\ |___MY_Documents\ |
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Sometimes we do not always know or
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find format keyb label mode more nl
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WINREP.EXE WINFILE.EXE WINHELP.EXE
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pause copy c:\temp\matt.txt c:\temp
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Cool Windows 95/98 Utilities KRNL38
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Changing TCP/IP Settings on Your Co
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Gateway Tab Figure 4—Putting in a
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Paper Lab: ICONS for Computer Diagr
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CISCO Net Ranger—CISCO security d
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Laptop—ditto. File server—Used
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Firewall—Network Address Translat
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Paper Lab: Proper Cable for the Pro
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Rollover (ro): Used for connecting
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Change hubs to switches: 38
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Add in a web access: DSU/CSU WWW 40
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4. Click on the file and print shar
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Figure 7—Selecting the options fo
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You should see something like this:
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purpose. Check your documentation.
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Now along the column headings we se
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Let’s try another one: 223. Start
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Then, using a different color marke
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Let me just walk through one more
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2 7 2 6 2 5 2 4 2 3 2 2 2 1 2 0 128
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For example, lets convert the binar
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To convert a large hexadecimal numb
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Network Data Link Physical Provides
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Encapsulation As we move down the O
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Session Transport Network Data Link
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Objective: To be able to learn more
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There are all kinds of other topolo
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Supplemental Lab or Challenge Activ
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The Start of Frame Delimiter (SOF)
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The Control (con) is 1 byte long an
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The Options (Opt) field can vary in
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only one port at a time. The hub al
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1 3 5 7 Workstation Workstation Wor
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Supplemental Labs or Challenge Acti
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9. Collision Domains: ____________
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Paper Lab: Subnetting Objective: To
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12. Routers pass packets between __
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2. Which of the following dotted no
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18. Select the IP address for the s
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12. What is the decimal to binary c
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4. How many possible subnets can be
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16. How would the host field be exp
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Subnet masking 1. How would the sub
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Whole enchilada problems 1. Which o
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Objective: To learn how to design n
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Subnetting Example: John’s Brewho
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Intermediate DOS Lab: Troubleshooti
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7. We know we have good connections
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DHCP Lab Objective: To learn about
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5. Notice how our address may diffe
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Free Protocol Inspector Objective:
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Objective: To learn how to use a pr
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Notice how we have three frames wit
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5. Type cd pub to change to the pub
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Protocols and the OSI Model Objecti
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DECnet Suite OSI Model 7 Protocol 6
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Layer 2 Technologies: LAN’s OSI M
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Supplemental Labs or Challenge Acti
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Once you click “connect” you sh
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Fun Ports to Surf with Telnet To op
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6. Make sure you have the following
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(Step 1) Configure a connection on
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. Double-click on “dial-up networ
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Step-By-Step Instructions: 1. You a
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Figure 5d—Isn’t that nice? 4. C
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Your Modem and You Objective: This
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AT&F load factory defaults and sett
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Part 2: Basic Routing I 154
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More importantly to you right now i
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Ethernet Console AUX Power Power Po
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Objective: To become familiar with
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9. Write down what you see on the w
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outer#terminal history size 5 17. U
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Other modes you may use include: co
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Objectives: To more fully understan
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So let’s look at a boot sequence
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Step-by-Step Instructions: 1. Hook
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NVRAM Flash RAM/DRAM ROM CPU Serial
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Basic Router Configuration Objectiv
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8. Once you have determined that yo
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Basic Rip Objectives: To learn abou
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It’s ok if you see it, but you pr
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Gateway of last resort is not set C
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Step-by-Step Instructions: 1. Troub
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Input queue: 0/75/0 (size/max/drops
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1 192.168.30.2 16 msec 16 msec * Ra
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5. Finally, do not forget about tho
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Loopback Interfaces Objectives: To
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2. We can use a loopback interface
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C:\WINDOWS\Desktop>ping 22.22.22.22
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Basic RIP with Protocol Inspector O
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5. Wait two minutes. Remember, you
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Router Telnet Lab Objective: To lea
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william#debug telnet Incoming Telne
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Addressing: Routers Hostnames Phibe
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On Optik you should see: optik#debu
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Scenario 3: Hostnames Phiber Optik
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5. Setup the workstations with IP a
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RIP metrics and the Limitations of
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Interface Send Recv Key-chain Ether
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Step-by-Step Instructions: 1. Cable
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Subnetting with DHCP Objectives: To
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Objective: To learn how to implemen
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So What Have I Learned Here? In thi
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Workstations A B IP 161.20.2.2 161.
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Now let’s explore some of the oth
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Overcoming Problems with Routing Lo
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RIP Version 2 and Redistribution wi
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9. Use your knowledge of debug comm
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Prompt Command Shortcut Description
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Design a network using VLSM and the
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Troubleshooting scenarios for Part
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Switch Maintenance Objective: In th
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Remember how we just put in a passw
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Just click on “yes” to clear th
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Step-By-Step Instructions: 1. You s
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Figure 2—STP showing cost of 10.
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Intermediate STP Objective: To be a
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connection to the root switch. That
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8. Change the cost of port 7 back t
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4. Now we need to assign ports to t
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c. Click on [A] for add a VLAN (thi
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Mixing it up: VLAN’s with STP Obj
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Subnetting Example: ABC Packaging O
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4. Stop the capture. You should see
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Part 3 Command Review Objective: To
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Whole Enchilada/Crazy Insano Lab #1
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Paper Lab: CISCO Three-Layer Hierar
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Protocol Deathmatch: RIP versus RIP
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company and control access between
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Step-By-Step Instructions: 1. Set u
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Guest Router Name Derivation In 199
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Workstations A B IP 200.150.100.2 2
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I 202.150.100.0/24 [100/8576] via 2
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Here we can see the entry for netwo
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Redistribution of IGRP and RIP Obje
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3. Now we can see how this affects
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dennis(config)#router rip dennis(co
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Gateway of last resort is not set I
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to add the extra metrics statements
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7. Notice the reachable/not reachab
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(VLSM/CIDR). OSPF on a wider scale
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wash# leung#sh ip ospf Routing Proc
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Border Gateway Protocol (BGP) Objec
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3. Let’s add in the BGP. It too u
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BGP table version is 24, local rout
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What time interval for each protoco
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Basic IP/IPX with Dynamic Routing O
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gibson#ping ipx 0000.1234.1111 % Un
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gibson#debug ipx sap ? activity IPX
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IPX Lab Diagram: network 100 enc SA
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7. Now let’s try that ping IPX ag
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Objective: To learn how to create w
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Paper Lab: Access Control Lists Obj
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Now we just need to do the second s
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Now let’s try to “free-hand”
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4. Make four text files and put one
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10. Try the shortcut to the 192.168
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Objective: To implement an extended
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8. Now let’s try the show access
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Objective: To implement a named acc
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actually build a mini-protocol insp
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Log Buffer (4096 bytes): 00:27:14:
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Firewall Basics using Reflexive ACL
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7. Even though that ACL works let
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Prompt Command Shortcut Description
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Registering for Your CCNA Exam Obje
Page 376 and 377: 3. Configure the router to receive
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Page 386 and 387: 00:54:36: Se0/0 IPCP: O CONFREQ [Cl
Page 388 and 389: 4. Let’s turn off debugging. Use
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Page 394 and 395: Remote Access DUN with PPP Encapsul
Page 396 and 397: lord(config)#ipx routing 0000.BBBB.
Page 398 and 399: Setting up a Router to be a Frame R
Page 400 and 401: Objective: To learn how to set up a
Page 402 and 403: turner#sh frame-relay pvc PVC Stati
Page 404 and 405: Step-By-Step Instructions: 1. Cable
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Page 412 and 413: Frame Relay Operation and Troublesh
Page 414 and 415: network we will see all but our own
Page 416 and 417: 7. Wrong ip address/mask Here I jus
Page 418 and 419: outer#sh frame map Serial0/0 (up):
Page 420 and 421: 3. Configure the ISDN interface on
Page 422 and 423: Challenge Lab or Supplemental Activ
Page 424 and 425: 3. Configure the ISDN interface on
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Page 430 and 431: 00:13:27: %LINEPROTO-5-UPDOWN: Line
Page 432 and 433: In line 1 we see our Q931 requestin
Page 434 and 435: Type escape sequence to abort. Send
Page 436 and 437: 36. IPCP: Install route to 192.168.
Page 438 and 439: Last C/I to ISDN transceiver: AI:Ac
Page 440 and 441: kissane#sh controller bri BRI unit
Page 442 and 443: 05:04:35: BR0/0:2 DDR: disconnectin
Page 444 and 445: Type escape sequence to abort. Send
Page 446 and 447: Sending 5, 100-byte ICMP Echos to 1
Page 448 and 449: kissane#debug ppp nego PPP protocol
Page 450 and 451: kissane#debug ppp nego PPP protocol
Page 452 and 453: 06:47:25: BR0/0:1 PPP: Treating con
Page 454 and 455: Step-By-Step Instructions: 1. Confi
Page 456 and 457: 7. Try to ping the loopback. You sh
Page 458 and 459: Frame Relay with ISDN Backup Object
Page 460 and 461: So what have I learned here? In thi
Page 462 and 463: Prompt Command Shortcut Description
Page 464 and 465: Coming In the Next Version of the T
Page 466: Did you like this book? There’s m
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