Redistribution Lab Practice 2

Now I increase the difficulty level. You are required to redistribute RIP, EIGRP and OSPF.

http://dl.dropbox.com/u/55776142/EIGRP%20and%20OSPF%20and%20RIP.pkt

Redistribution Lab Practice 1

Make sure you redistribute EIGRP to OSPF  and vice versa (on the border router only)

http://dl.dropbox.com/u/55776142/EIGRP%20and%20OSPF.pkt

PL1101S Assignment

For PL1101S, this is your assignment for today.

http://dl.dropbox.com/u/55776142/PL1101S_INTT_OSPF_EIGRP_Redistribution.pkt

Chapter 5 revision questions

Chapter 5 revision questions uploaded. Do this set when you are free.

http://dl.dropbox.com/u/55776142/SEMESTER%202%20Chapter%205.doc

Chapter 9 learning materials uploaded

Hello ! The presentation slides for Chapter 9 are as follows:

Summary Slides (Beginner)
http://dl.dropbox.com/u/55776142/CCNA2_Chp9_EIGRP_V1.ppt
Slightly Detailed Slides (Intermediate)
http://dl.dropbox.com/u/55776142/Expl_Rtr_chapter_09_EIGRP_Part_1.ppt
http://dl.dropbox.com/u/55776142/Expl_Rtr_chapter_09_EIGRP_Part_2.ppt
Detailed Slides (Advanced)
http://ibizzone.ite.edu.sg/elearning/file.php/38/Internetworking/Exp_2-Ch_9-EIGRP.pdf
Quiz
http://ibizzone.ite.edu.sg/elearning/mod/quiz/view.php?id=937

Follow your skill level and go through the slides. If you feel comfortable, go through the higher level slides as well and finally, attempt the quiz.

Today's EIGRP and RIPv2 lab practice

http://dl.dropbox.com/u/55776142/RIPv2%20and%20EIGRP%20Lab.pkt

You are required to configure EIGRP and RIPv2. Both protocols will have to work with each other at the border router.

Chapter 9 instructor slides uploaded

Here are the slides for yesterday's lesson.

http://dl.dropbox.com/u/55776142/Chapter%209%20Keypoint.ppt

Chapter 2 revision notes

Static routes are used in
1) Stub networks
2) Small networks with very few routers
3) Hub and spoke topology
4) Direct connection to the ISP

Advantages of static routes
1) Easy to configure
2) Do not use up much bandwidth or CPU resources

Disadvantages of static routes
1) Need to reconfigure everytime the network changes

How to configure static routes

router (config) # ip route <network address> <subnet mask> <exit interface/next hop address>

where
network address is the address of the destination network
subnet mask is the subnet mask used by the destination network

exit interface - outgoing interface (faster lookup) (for point to point network)
next hop address - address of the neighbour router (slower lookup) (multiple access network)

Serial cables has DCE and DTE portions. DCE is connected to the ISP while DTE is connected to the router. DCE need to setup the clockrate IN THE LAB ONLY.

How to analyze a route in the routing table

R       10.0.0.0 [120/1] via 11.0.0.1, 00:00:19, Serial0/0/0

R - type of route
10.0.0.0 - network  address
120 -  administrative distance
1 - metric
11.0.0.1 - next hop address
00:00:19 - elapsed time
serial 0/0/0 - exit interface

Administrative distance of connected route = 0
Administrative distance of static route = 1
Administrative distance of RIP = 120

Summary route is used to summarize routes with the same next hop address or exit interface

For example,
R       192.168.1.0/24 [120/1] via 11.0.0.1, 00:00:19, Serial0/0/0
R       192.168.2.0/24 [120/1] via 11.0.0.1, 00:00:19, Serial0/0/0
R       192.168.3.0/24 [120/1] via 11.0.0.1, 00:00:19, Serial0/0/0

Can be summarized to

R       192.168.0.0/22 [120/1] via 11.0.0.1, 00:00:19, Serial0/0/0

Summary routes reduce routing entries and thus, making lookup faster. Lookup faster would mean routing faster.

Default routes are a form of static routes. They can be used for stub networks or last choice routes.

S*   0.0.0.0/0 is directly connected, Serial0/0/0

They match all packets

Chapter 1 revision notes

Main components of a router
1) CPU
2) ROM (Permanent)
3) RAM (Erase upon reboot)
4) NVRAM (Erase by user)
5) Flash (Erase by user)

Type of interfaces
1) Management ports - console and auxiliary
2) LAN interfaces - serial (DB60, smart serial)
3) WAN interfaces - fastethernet, ethernet (RJ45)

Contents of a router
1) ROM - Bootstrap, diagnostic and mini IOS
2) RAM - routing table, arp cache, running config, packet buffer
3) NVRAM - startup config
4) Flash - compressed IOS

Boot up sequence
1) POST
2) Bootstrap
3) Locate and load IOS
    - Flash
    - TFTP
    - Mini IOS
4) Locate and load startup config
    - NVRAM
    - TFTP
    - Setup mode
5) Startup config in NVRAM is copied as running config in RAM

Main functions of a router
1) Best path determination
2) Packet switching - decapsulate (Remove old mac addresses), lookup routing table, encapsulate (Add new mac addresses)
3) IP addresses remains the same throughout.