implementing ospfv2

Question 1

enter ospf conf and set proc number

Answer 1

router ospf 3

Question 2

set rid manually

Answer 2

router-id 1.1.1.1 in ospf conf

Question 3

how to set network of interfaces to enable ospf on

Answer 3

network 192.x.x.x 0.255.255.255 area 0

Question 4

explain wildcard mask

Answer 4

octet start from the right, 255 means ignore that i.e. 10.1.1.1 0.255.255.255 = 10.0.0.0

Question 5

the 2 values in O routes e.g. 110|2

Answer 5

ad and metric

Question 6

check list of ints 1 line per

Answer 6

show ip interface bried

Question 7

how does router pick DR

Answer 7

highest IP from all ints that are up/up or up/down

Question 8

how to conf loopback

Answer 8

interface loopback 0

ip addr 192.x.x.x.

Question 9

how to enable multiarea ospf on an interface

Answer 9

ip ospf 3 area 0 in int conf mode

no network in ospf conf to remove cmd

Question 10

what are passive interfaces

Answer 10

does no send or process Hellos

still advertises subnet

Question 11

how to make passive int

Answer 11

router ospf 1

passive-interface gig0/0.1

Question 12

how to make passive default

Answer 12

router ospf 1
passive-interface default
to enbale interfaces use no passive-interface

Question 13

how to view passive interface

Answer 13

show run

show ip ospf interface

Question 14

how to create default route

Answer 14

default-information originate

Question 15

command to see default route

Answer 15

show ip route

Question 16

how to change cost

Answer 16

ip ospf cost 10

Question 17

how to verify cost

Answer 17

show ip ospf interface brief

Question 18

formula for cost

Answer 18

reference bandwidth/interface bandwidth

Question 19

how to change reference bandwidth

Answer 19

auto-cost reference-bandwidth 10000000

Question 20

how to do load balancing with equal cost links

Answer 20

router ospf 1

maximum paths 3