How to configure interfaces on a router

1. Ethernet interfaces [ip address and no shut]

2. WAN interfaces, important to remember the clock rate on DCE ends

   1. show controllers s0/0 is a good way to find out if the end is DCE

   2. ip address, no shut and clock rate

Base Cisco IOS commands

enable

Config t

hostname Router5

enable secret class

enable password cisco

!——————-

line vty 0 4

password cisco

login

!————-

line con 0

logging sync !*****very important*******

no exec-time !*****very important*******

password cisco

login

!————-

line aux 0

password cisco

login

!————-

no ip domain-lookup

Theses can be copied and pasted to each router you want to configure.

What is telnet ?

While being one of the most unsecure protocols, due to it’s transfer of passwords in cleatext, this is one of the most useful and widely used protocols/applications.

How can you connect to a router using Telnet ?

First you need to configure the router to accept telnet logins by doing

line vty 0 4

password cisco

login

This will enable 5 simultaneous telnet logins to the router.

on smaller routers, configuration is accessed by connecting through a web browser. So telnet is not an option.

Cisco router bootup process as it happens in hardware.

1. POST – Power On Self Test

2. Depending on the config_reg parameters, locate the IOS in flash and boot.

3. Copy startup_config (NVRAM) to running_config (DRAM)

4. etc …

There are 5 types of passwords that can be configured on a router.

1. enable password [enable password cisco]
2. enable secret [enable secret class]
3. telnet [line vty 0 4, password cisco, login]
4. aux [line aux 0, password cisco, login]
5. console [line con 0, password cisco, login]

They all have the same syntax/ pattern.

The image is an easy way to remember how to configure passwords

There are so many options as to how you would acquire the hardware for your CCIE preparation.

Normally you would buy the equipment but this is very expensive. The 2^nd option is to rent rack time. This works outs cheaper than buying. The uncommon option that I use is to contact to the local Cisco academy to get access to their remote NETLAB access. This is one of the cheapest ways of finding hardware for your CCIE preparation.

There are so many Cisco academies spread throughout the world. Some regional academies have very good racks with lots of latest equipment.

If cost is an issues, you should definitely contact your local Cisco academy and find out about the availability of their Netlab pods. Some might surprise you with their equipment and helpfulness.

Hope this helps

All the best with your CCIE lab.

hostname HQ
interface Serial0/1/1
ip address 172.16.124.1 255.255.255.248
encapsulation frame-relay
frame-relay map ip 172.16.124.2 102 broadcast
frame-relay map ip 172.16.124.3 103 broadcast
no frame-relay inverse-arp
no shutdown
!
router eigrp 1
network 0.0.0.0
no auto-summary
neighbor 172.16.124.3 Serial0/1/1
neighbor 172.16.124.2 Serial0/1/1

==============
hostname East
!
interface Serial0/1/1
ip address 172.16.124.2 255.255.255.248
encapsulation frame-relay
clock rate 125000
frame-relay map ip 172.16.124.1 201 broadcast
frame-relay map ip 172.16.124.3 201
no shutdown
!
router eigrp 1
network 0.0.0.0
no auto-summary
neighbor 172.16.124.1 Serial0/1/1

===============

hostname West
!
interface Serial0/1/0
ip address 172.16.124.3 255.255.255.248
encapsulation frame-relay
frame-relay map ip 172.16.124.1 301 broadcast
frame-relay map ip 172.16.124.2 301
no shutdown
!
router eigrp 1
network 0.0.0.0
no auto-summary
neighbor 172.16.124.1 Serial0/1/0
Tested with
debug ip packet

HQ(config-router)#
*Jun 3 23:35:12.359: IP: s=10.1.97.97 (local), d=224.0.0.10 (Loopback97), len 60, sending broad/multicast
*Jun 3 23:35:12.359: IP: s=10.1.97.97 (Loopback97), d=224.0.0.10, len 60, rcvd 2
*Jun 3 23:35:12.559: IP: s=10.1.161.161 (local), d=224.0.0.10 (Loopback161), len 60, sending broad/multicast
*Jun 3 23:35:12.559: IP: s=10.1.161.161 (Loopback161), d=224.0.0.10, len 60, rcvd 2
*Jun 3 23:35:12.907: IP: s=10.1.33.33 (local), d=224.0.0.10 (Loopback33), len 60, sending broad/multicast
*Jun 3 23:35:12.907: IP: s=10.1.33.33 (Loopback33), d=224.0.0.10, len 60, rcvd 2
*Jun 3 23:35:13.171: IP: s=10.1.65.65 (local), d=224.0.0.10 (Loopback65), len 60, sending broad/multicast
HQ(config-router)#
*Jun 3 23:35:13.171: IP: s=10.1.65.65 (Loopback65), d=224.0.0.10, len 60, rcvd 2
*Jun 3 23:35:13.371: IP: s=10.1.129.129 (local), d=224.0.0.10 (Loopback129), len 60, sending broad/multicast
*Jun 3 23:35:13.371: IP: s=10.1.129.129 (Loopback129), d=224.0.0.10, len 60, rcvd 2
*Jun 3 23:35:13.475: IP: s=10.1.1.1 (local), d=224.0.0.10 (Loopback1), len 60, sending broad/multicast
*Jun 3 23:35:13.475: IP: s=10.1.1.1 (Loopback1), d=224.0.0.10, len 60, rcvd 2

manual neighbors
sh ip eigrp nei
manual ->
router eigrp 100
neighbor 208.102.37.100 f1/0
sh run
sh ip pro
sh ip eigrp nei -> will not show this new neighbor !
Other end should point to me using a “neigbor command”

Redistribution Eigrp
1.ip route 0.0.0.0 0.0.0.0 f0/0 (scott)
router eigrp 100
redist static defaultmetric

2.int f1/0 (scott)
ip summery address eigrp 100 0.0.0.0 0.0.0.0
this will be sent to the neighbors as the default route
3.ip route 0.0.0.0 0.0.0.0 f0/0 (Jeremy)
router eigrp 100
net 0.0.0.0

Load balancing
default 4 equal cost paths
1.equal cost
maximum path 1-6
2.unequal cost
variance
cost based packet allocation, e.g costs 1 & 4

router eigrp 100
traffic share min -> use min cost links
traffic share balanced -> back to cost based allocation

BGP
in Ibgp-> peers do not need to be directly connected tcp/179

Ebgp multihop

Read

1. Doyle’s “Routing TCP/IP” Vol1&2,
2. Halabi’s “Internet Routing Architectures”

Without no hesitation, Doyle’s “Routing TCP/IP” Vol1&2, Halabi’s
“Internet Routing Architectures” are definitely must-reads.

Written Exam Blueprint v3.0

http://www.cisco.com/web/learning/le3/ccie/rs/wr_exam_blueprint_v3.html

I have been in the networking industry for 15 years and began my journey to CCIE in 2001 when I took CCNA than CCNP 2003 and CCIE written today.

Written exam is a good foundation for the lab. When you have learned the theory you can use the core technology theory at work or for your lab.

There is one major difference between CCIE R&S written and all of the other Cisco professional levels exams (CCNA, CCNP etc), you can mark questions to review and then go back and review them. With all other Cisco exams you cannot go back and change your answers. This is really great to reduce self induced pressure during the exam. The best test taking approach is just answer all the questions that you can immediately, if a question is difficult then mark it for review later and continue with the next question.

Grading is on a scale from 1 – 100

Pass mark is 70%

NO -> ISIS, RIP