ospf solution.docx

8/9/2019 ospf solution.docx

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Step 1:Finish the IP

Addressing.Note:

Initially, you canonly accessrouter US-R2

through theconsole


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US-R2 that are

listed intheaddressing

table.US-R2

(config)# intFa0/0

US-R2 (config-

if)# ip add


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192.168.20.65

255.255.255.224

US-R2 (config-

if)# noshut US-R2

(config-if)#exit

US-R2 (config)

# int


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Fa0/1

US-R2 (config-

if)# ip add

192.168.20.113255.255.255.248

US-R2 (config-if)# no

shut US-R2(config-if)#

exit


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US-R2 (config)

# int

S0/0/0US-R2 (config-

if)# ip add192.168.20.242255.255.255.252

US-R2 (config-

if)# no


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shut US-R2

(config-if)#

exit

US-R2 (config)

# into0

US-R2 (config-if)# ip add


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1!2.16.0.2

255.255.255.255

US-R2 (config-

if)# noshut US-R2

(config-if)#exit

b.


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Configure the

correct IPaddresses on

US-PC2 and US-R.

Configure US-PC2 !ith the last

IP address in thesubnet.


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Ip address:

192.168.20.94S"#net $as%:

255.255.255.224&e'a"(t

gate)a*:192.168.20.65

Configure the"a#$ interface

on US-R !ith


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the last IP

address inthesubnet.

US-R1(config)# int

Fa0/1US-R1 (config-

if)# ip add192.168.20.118255.255.255.248


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US-R1 (config-

if)# no

shut US-R1

(config-if)#exit

c.

%erifyconnectivity.


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Step 2:&is+o,er the

Net)or%.&'(lore the

net!or) todetermine the IPaddressing of the

serial interfacesthat US-*+


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shares !ith US-

R and US-R2.

Remotely access

US-*+.

US-R1#telnet 192.16

8.20.2!


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Step 3:-on'ig"re

Stati+and &e'a"(t

o"ting.a.

Configureconnectivity to

the U.


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Using the ne'tho( address

2.#.2/.2,configure onesummary

staticroute onUS-*+ to

include only thesubnets usedand reserved for


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theU. 0he U

subnets arelisted in the

follo!ing table1"(config)# ip

$oute10.10.0.0

2!!.2!!.2!2.0

128.10%.2!.2 S"#nets


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#.#.#.#$2#.

#..#$2#.#.2.#$2/#.#.2.2$

2/#.#.3.#$2/#.#.3.2$24#.#.3.52$2#.#.3.22$2#.#.3.2#$3##.#.3.

2$3##.#.3.2$3##.#.3.2/

2$3#


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Configure adefault route on

US-*+ to sendto the Internet all

other traffic fordestinations thatare not found in

the US-*+routing table.

Usethe


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o"t#o"nd

inter'a+eargument

."(config)#

ip $oute0.0.0.0

0.0.0.0

S0&1&0b.


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%erify static and

default routing.

Step 4:

-on'ig"reSPF

o"ting.a.


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Configure 6SP"

on US-*+, US-R, and US-R2.

Use 6SP"

(rocess I7 3 andarea #.

Advertise eachsubnet

individually !ith


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its corres(onding

!ildcardmas).6n US-

*+, do notadvertise thesubnet to theInternet or thesubnet toU.

"(config)#$oute$ ospf

' "(config-


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$oute$)#

neto$

192.168.20.2

0.0.0.' a$ea0 "(config-

$oute$)#neto$

192.168.20.20 0.0.0.' a$ea

0 US-R1


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(config)#

$oute$ ospf '

US-R1 (config-

$oute$)#


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neto$

192.168.20.0

0.0.0.6' a$ea

0 US-R1(config-

$oute$)#neto$

192.168.20.112 0.0.0.% a$ea

0 US-R1


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(config-

$oute$)#

neto$

192.168.20.2 0.0.0.' a$ea

0 US-R2(config)#

$oute$ ospf' US-R2

(config-


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$oute$)#

neto$

192.168.20.6

0.0.0.'1 a$ea0 US-R2

(config-$oute$)#

neto$192.168.20.11

2 0.0.0.% a$ea


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0 US-R2

(config-

$oute$)#

neto$192.168.20.2

0 0.0.0.' a$ea0

7isable 6SP"u(dates out


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interfaces !here

there are no6SP"neighbors

available."(config-

$oute$)#passi*e-

inte$face

s0&1&0 "(co

nfig-$oute$)#


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passi*e-

inte$face

s0&1&1US-R1

(config-$oute$)#

passi*e-inte$face

fa0&0 US-R2(config-

$oute$)#


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passi*e-

inte$face

fa0&0

Configure US-

*+ to send thedefault route toUS-R and US-R2 in6SP"u(dates.


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"(config-

$oute$)#

default-

info$+ationo$iginate

b.

8odify the

default 6SP"o(eration.


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Configure US-R

to al!ays bethe 7R by using

a (riority of150.

,ou$ a0&1 S

0&0 US-R1

(config-if)# ip


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ospf p$io$it/

1!0

Configure US-R2to al!ays be the

97R by using a(riority of

!5.


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,ou$ a0&1 S

0&0 US-R2

(config-if)# ip

ospf p$io$it/%!

Change the hello

interval to 3#seconds on US-R and US-R2


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for the:A; that

these t!o routersshare !ith

Server:A;.US-R1 (config-

if)# ip ospfhello-inte$*al

'0 (f0&0) US-

R2 (config-if)#

ip ospf hello-


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inte$*al

'0 (f0&1)

%erify 6SP"neighbor status.

US-R1# shoip ospf

neigho$c.


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%erify that 6SP"

is fullyo(erational.

%erify that the

routing tables onUS-R, US-R2,and US-*+

contain allthee'(ected routes.

It may be


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necessary to

shutdo!n andthenreactivate

interfaces toforce 6SP" toconverge.

US-R1# sho

ip $oute

ospf solution.docx

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