LAB18: OSPF – IPv6
Disclaimer
This Configuration Guide is designed to assist members to enhance their skills in respective technology area.
Note: This Lab was developed on Cisco IOS Version15.2(4) M1 ADVENTERPRISEK9-M.
LAB 18: IPv6 OSPF Summarization on ASBR
Task 1: Configure IPv6 OSPF Summarization
In the configuration mode of router configure 4 loopbacks with network
address in sequence
R1:
interface loopback 100
ipv6 address 100:0:0::1/64
exit
interface loopback 101
ipv6 address 100:0:1::1/64
exit
interface loopback 102
ipv6 address 100:0:2::1/64
exit
interface loopback 103
ipv6 address 100:0:3::1/64
exit
Step 2
R1:
ipv6 router ospf 1
redistribute connected subnets
exit
(Redistributed connected will redistribute its connected network. Subnet will allow classless routes in OSPF process.)
Step 3
R2#show ipv6 route
! (Shows router’s routing table and IPv6 entries)
IPv6 Routing Table - default - 26 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
O
O
O
O
C
L
C
L
C
L
C
L
C
L
O
O
O
OI
OI
OI
OI
OE2 100::/64 [110/20]
OE2 100:0:1::/64 [110/20]
OE2 100:0:2::/64 [110/20]
OE2 100:0:3::/64 [110/20]
L
(E2 means External route type 2, in which will not change cost after every hop throughout the OSPF.)
Step 4
! (In external route summary is always done on Autonomous System
R1:
ipv6 router ospf 1
summary-prefix 100::/16
exit
Task 2:
Verify receipt of summary route in neighbor routing table &
verify creation of null interface in routing table by following command:
R1#show ipv6 route
IPv6 Routing Table - default - 30 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
C
L
C
L
C
L
C
O
L
OI
OI
OI
OI
OI
OI
OI
OI
OI
OI
OI
O
C
L
C
L
C
L
C
L
L
(When summarization is configured on a router; same router
R2#show ipv6 route
! (Shows router’s routing table and IPv6 routes entries)
IPv6 Routing Table - default - 23 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static
O
O
O
O
C
L
C
L
C
L
C
L
C
L
O
O
O
OI
OI
OI
OI
OE2 100::/16 [110/20]
L
