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

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Just click on “yes” to clear the passwords or ignore the message altogether to keep the current ones in use. Most people miss it because they are too busy watching all the blinking lights, talking with someone, or off getting their Dew. Supplemental Lab or Challenge Activity: 1. Try doing these labs (this one and the ones to follow) using the command line interface. Some people have seen questions related to this on tests or on practice test CD-roms. 2. Try setting up usernames with passwords for telnet access with your switch. So What Have I Learned Here? In this lab you learned about some miscellaneous, yet nifty, features about switches and maintaining switches. In the next lab you will start learning about the Spanning Tree Protocol. 251
Basic STP Objective: To learn how to construct and understand Spanning Tree Protocol (STP) connections, to view and understand spanning tree states with a protocol inspector, and to construct and configure redundant backbones between switches. Tools and Materials: Three (3) cross-over cables Three CISCO switches (1900 series) Two (2) straight-through cables Two Windows PC workstations with Hyperterminal and Ethereal installed Lab Diagram: 1 bx ax bx ax bx ax 1 st xo xo st NIC xo workstation “A” workstation “B” Background: The main function of the Spanning-Tree Protocol (STP) is to allow us to set up redundant back up lines in case of emergency between switches. When a main line between two of the switches becomes dysfunctional the switch, through its STP states (Blocking, Listening, Learning, Forwarding, Disabled), implements the Spanning Tree Algorithm (STA) when a “link down” is detected. By default the switch checks the condition of its ports every 30 seconds. In other words, when a main line goes down, the redundant backbone should come up within 30 seconds (although sometimes it takes up to about 60 seconds with default settings). STP is implemented on switches, by default, for VLANs 1-64. This means all you have to do is plug in your redundant backbone (a cross over cable) into any available port between switches because all switches in their default state have all ports assigned to VLAN 1. The switch uses priorities to determine which lines are the main lines and which are the redundant backbones. The values can be 0 through 255. The lower number has the higher priority (the main lines). By default each 10BaseT port is assigned a priority of 128 and each 100BaseT port is assigned a priority of 10. On our 1900 series switches this means that the Ax and Bx ports will be selected as main backup lines before ones using the numbered (1-12 or 1-24) ports. In practice, we use the Ax and Bx lines to set our “Trunks” or backbone lines. Since the Ax and Bx lines are typically used for high speed this works best. In the next lab you will be configuring the backbone lines by changing the settings (cost, priority, etc) on each port to determine statically which will be the main backbones and which will be the redundant backbones. 252
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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
Page 208 and 209: C:\WINDOWS\Desktop>ping 22.22.22.22
Page 210 and 211: Basic RIP with Protocol Inspector O
Page 212 and 213: 5. Wait two minutes. Remember, you
Page 214 and 215: Router Telnet Lab Objective: To lea
Page 216 and 217: william#debug telnet Incoming Telne
Page 218 and 219: Addressing: Routers Hostnames Phibe
Page 220 and 221: On Optik you should see: optik#debu
Page 222 and 223: Scenario 3: Hostnames Phiber Optik
Page 224 and 225: 5. Setup the workstations with IP a
Page 226 and 227: RIP metrics and the Limitations of
Page 228 and 229: Interface Send Recv Key-chain Ether
Page 230 and 231: Step-by-Step Instructions: 1. Cable
Page 232 and 233: Subnetting with DHCP Objectives: To
Page 234 and 235: Objective: To learn how to implemen
Page 236 and 237: So What Have I Learned Here? In thi
Page 238 and 239: Workstations A B IP 161.20.2.2 161.
Page 240 and 241: Now let’s explore some of the oth
Page 242 and 243: Overcoming Problems with Routing Lo
Page 244 and 245: RIP Version 2 and Redistribution wi
Page 246 and 247: 9. Use your knowledge of debug comm
Page 248 and 249: Prompt Command Shortcut Description
Page 250 and 251: Design a network using VLSM and the
Page 252 and 253: Troubleshooting scenarios for Part
Page 254 and 255: Switch Maintenance Objective: In th
Page 256 and 257: Remember how we just put in a passw
Page 260 and 261: Step-By-Step Instructions: 1. You s
Page 262 and 263: Figure 2—STP showing cost of 10.
Page 264 and 265: Intermediate STP Objective: To be a
Page 266 and 267: connection to the root switch. That
Page 268 and 269: 8. Change the cost of port 7 back t
Page 270 and 271: 4. Now we need to assign ports to t
Page 272 and 273: c. Click on [A] for add a VLAN (thi
Page 274 and 275: Mixing it up: VLAN’s with STP Obj
Page 276 and 277: Subnetting Example: ABC Packaging O
Page 278 and 279: 4. Stop the capture. You should see
Page 280 and 281: Part 3 Command Review Objective: To
Page 282 and 283: Whole Enchilada/Crazy Insano Lab #1
Page 288 and 289: Paper Lab: CISCO Three-Layer Hierar
Page 290 and 291: Protocol Deathmatch: RIP versus RIP
Page 292 and 293: company and control access between
Page 294 and 295: Supplemental Lab or Challenge Activ
Page 296 and 297: Step-By-Step Instructions: 1. Set u
Page 298 and 299: Guest Router Name Derivation In 199
Page 300 and 301: Workstations A B IP 200.150.100.2 2
Page 302 and 303: I 202.150.100.0/24 [100/8576] via 2
Page 304 and 305: Here we can see the entry for netwo
Page 306 and 307: 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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Whole Enchilada/Crazy Insano Lab #2
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Registering for Your CCNA Exam Obje
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3. Configure the router to receive
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Point-to-Point Protocol (PPP) Objec
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MTU 1500 bytes, BW 128 Kbit, DLY 20
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So what have I learned here? In thi
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PAP (Password Authentication Protoc
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00:54:36: Se0/0 IPCP: O CONFREQ [Cl
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4. Let’s turn off debugging. Use
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20. 01:24:46: Se0/1 LCP: MagicNumbe
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“real-world” scenario. Undo all
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Remote Access DUN with PPP Encapsul
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lord(config)#ipx routing 0000.BBBB.
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Setting up a Router to be a Frame R
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Objective: To learn how to set up a
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turner#sh frame-relay pvc PVC Stati
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Step-By-Step Instructions: 1. Cable
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Fully-Meshed Frame Relay with 3 Rou
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Shadow 16 17 18 18 Diekman 17 16 Kn
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interface connections for #16 and #
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Frame Relay Operation and Troublesh
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network we will see all but our own
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7. Wrong ip address/mask Here I jus
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outer#sh frame map Serial0/0 (up):
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3. Configure the ISDN interface on
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Challenge Lab or Supplemental Activ
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3. Configure the ISDN interface on
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00:21:08: %LINEPROTO-5-UPDOWN: Line
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Data Link Layer Two things happen h
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00:13:27: %LINEPROTO-5-UPDOWN: Line
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In line 1 we see our Q931 requestin
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Type escape sequence to abort. Send
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36. IPCP: Install route to 192.168.
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Last C/I to ISDN transceiver: AI:Ac
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kissane#sh controller bri BRI unit
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05:04:35: BR0/0:2 DDR: disconnectin
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Type escape sequence to abort. Send
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Sending 5, 100-byte ICMP Echos to 1
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kissane#debug ppp nego PPP protocol
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kissane#debug ppp nego PPP protocol
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06:47:25: BR0/0:1 PPP: Treating con
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Step-By-Step Instructions: 1. Confi
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7. Try to ping the loopback. You sh
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Frame Relay with ISDN Backup Object
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So what have I learned here? In thi
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Prompt Command Shortcut Description
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Coming In the Next Version of the T
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Did you like this book? There’s m
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