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

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wash# leung#sh ip ospf Routing Process "ospf 1" with ID 172.16.3.1 Supports only single TOS(TOS0) routes SPF schedule delay 5 secs, Hold time between two SPFs 10 secs Minimum LSA interval 5 secs. Minimum LSA arrival 1 secs Number of external LSA 0. Checksum Sum 0x0 Number of DCbitless external LSA 0 Number of DoNotAge external LSA 0 Number of areas in this router is 1. 1 normal 0 stub 0 nssa Area BACKBONE(0) Number of interfaces in this area is 2 Area has no authentication SPF algorithm executed 2 times Area ranges are Number of LSA 2. Checksum Sum 0x848F Number of DCbitless LSA 0 Number of indication LSA 0 Number of DoNotAge LSA 0 leung# wash#sh ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 172.16.3.1 1 FULL/ - 00:00:32 172.16.2.2 Serial0/0 wash# leung#sh ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 172.16.2.1 1 FULL/ - 00:00:31 172.16.2.1 Serial0/1 leung# leung#debug ip ospf events OSPF events debugging is on 00:10:09: OSPF: Rcv hello from 172.16.2.1 area 0 from Serial0/1 172.16.2.1 00:10:09: OSPF: End of hello processing 00:10:19: OSPF: Rcv hello from 172.16.2.1 area 0 from Serial0/1 172.16.2.1 00:10:19: OSPF: End of hello processing 00:10:29: OSPF: Rcv hello from 172.16.2.1 area 0 from Serial0/1 172.16.2.1 00:10:29: OSPF: End of hello processing 315
Supplemental Lab or Challenge Activities: 1. Go out to <strong>CISCO</strong> and find out how Designated Routers and Backup Designated Routers are elected. 2. Find out why we use loopback address with OSPF. 3. Capture and analyze the OSPF packet structure. 4. What is a “hello” packet in OSPF? So What Did I Just Learn Here? In this lab you learned the basics of the OSPF routing protocol. Trust me…there is a lot more to this routing protocol. You also learned about the basics of wildcard masks. We will be using these in a couple more labs on Access Control Lists so now was a good time to bring this up. Guest Router Name Washington Leung was sentenced in early 2002 to 18 months in Federal prison and $92,000 in restitution for illegally accessing and deleting records at his former place of employment using the computers of his new place of employment (I will bet the new place of employment is now another former place of employment). Apparently he made unwanted advances to a female at his first company and was fired for it. He worked in the Human Resources Department on employment records, compensation, payroll, and passwords of accounts. After he was terminated from his first company he landed a job at a new company. Guess what? The first company never changed those passwords. So Leung copied and then deleted about 1000 records from the first company over the Internet using computers at his second job. He also gave that woman’s file a makeover: a $40,000 a year RAISE and a $100,000 bonus. Then he created a Hotmail account in the woman’s name and sent an email to the executives of the first company from “her” with an attachment of her original file. Don’t try this at home boys and girls: Forensic images of the computer he used at the second company revealed the hotmail account was created with that computer. Boo-ya! Busted prison style! 316
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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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Supplemental Lab or Challenge Activ
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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
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
Page 308 and 309: 3. Now we can see how this affects
Page 310 and 311: dennis(config)#router rip dennis(co
Page 312 and 313: Gateway of last resort is not set I
Page 314 and 315: to add the extra metrics statements
Page 316 and 317: 7. Notice the reachable/not reachab
Page 320 and 321: (VLSM/CIDR). OSPF on a wider scale
Page 324 and 325: Border Gateway Protocol (BGP) Objec
Page 326 and 327: 3. Let’s add in the BGP. It too u
Page 328 and 329: BGP table version is 24, local rout
Page 330 and 331: What time interval for each protoco
Page 332 and 333: Basic IP/IPX with Dynamic Routing O
Page 334 and 335: gibson#ping ipx 0000.1234.1111 % Un
Page 336 and 337: gibson#debug ipx sap ? activity IPX
Page 338 and 339: IPX Lab Diagram: network 100 enc SA
Page 340 and 341: 7. Now let’s try that ping IPX ag
Page 342 and 343: Objective: To learn how to create w
Page 344 and 345: Paper Lab: Access Control Lists Obj
Page 346 and 347: Now we just need to do the second s
Page 348 and 349: Now let’s try to “free-hand”
Page 350 and 351: 4. Make four text files and put one
Page 352 and 353: 10. Try the shortcut to the 192.168
Page 354 and 355: Objective: To implement an extended
Page 356 and 357: 8. Now let’s try the show access
Page 358 and 359: Objective: To implement a named acc
Page 362 and 363: actually build a mini-protocol insp
Page 364 and 365: Log Buffer (4096 bytes): 00:27:14:
Page 366 and 367: Firewall Basics using Reflexive ACL
Page 368 and 369: 7. Even though that ACL works let
Page 370 and 371: 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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