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You are here: Home → White Papers → Summarization
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Summarization

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White Papers

Summarization

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Summarization

RST Forum White Paper

 

LAB11: OSPF – IPv6

Disclaimer

This Configuration Guide is designed to assist members to enhance their skills in respective technology area. ​​ While every effort has been made to ensure​​ that all material is as complete and accurate as possible, the enclosed material is presented on an “as is” basis. ​​ Neither the authors nor Forum assume any liability or responsibility to any person or entity with respect to loss or damages incurred from the information contained in this guide. This Lab Guide was developed by RSTForum. ​​ Any similarities between material presented in this configuration guide and any other material is completely coincidental.

 

LAB 11: Diagram

Note: This Lab was developed on Cisco IOS Version15.2(4) M1 ADVENTERPRISEK9-M.​​ 

LAB 11: IPv6 OSPF Summarization:

 

Task 1: Configure IPv6 OSPF Summarization​​ 

 

  • In the configuration mode of router configure 4 loopbacks with network address in sequence​​ 

 

R1:

interface loopback 0

ipv6​​ address 11:0:0::1/64

exit

interface loopback 1​​ 

ipv6 address 11:0:1::1/64

exit

interface loopback 2​​ 

ipv6 address 11:0:2::1/64

exit

interface loopback 3​​ 

ipv6 address 11:0:3::1/64

exit

 

 

  • Verify routes on neighbor router routing table

R2#show ipv6 route

!​​ (Shows router’s routing table and IPv4 routes entries)

 

 IPv6 Routing Table - default - 21 entries

Codes: C - Connected, L - Local, S - Static, U - Per-user Static route

 ​​ ​​ ​​ ​​ ​​ ​​​​ B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP

 ​​ ​​ ​​ ​​ ​​ ​​​​ H - NHRP, I1 -​​ ISIS L1, I2 - ISIS L2, IA - ISIS interarea

 ​​ ​​ ​​ ​​ ​​ ​​​​ IS - ISIS summary, D - EIGRP, EX - EIGRP external, NM - NEMO

 ​​ ​​ ​​ ​​ ​​ ​​​​ ND - ND Default, NDp - ND Prefix, DCE - Destination, NDr - Redirect

 ​​ ​​ ​​ ​​ ​​ ​​​​ O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2

 ​​ ​​ ​​ ​​ ​​ ​​​​ ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2, l - LISP

O  ​​​​ 11:0:1::1/128 [110/64]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:100, Serial2/0

O  ​​​​ 11:0:2::1/128 [110/64]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:100, Serial2/0

O  ​​​​ 11:0:3::1/128 [110/64]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:100, Serial2/0

C  ​​​​ 12::/64 [0/0]

 ​​ ​​ ​​ ​​​​ via Serial2/0, directly connected

L  ​​​​ 12::A8BB:CCFF:FE00:200/128 [0/0]

 ​​ ​​ ​​ ​​​​ via Serial2/0, receive

C  ​​​​ 22:0:1::/64 [0/0]

 ​​ ​​ ​​ ​​​​ via Loopback1, directly connected

L  ​​​​ 22:0:1::2/128 [0/0]

 ​​ ​​ ​​ ​​​​ via Loopback1,​​ receive

C  ​​​​ 22:0:2::/64 [0/0]

 ​​ ​​ ​​ ​​​​ via Loopback1, receive

C  ​​​​ 22:0:2::/64 [0/0]

 ​​ ​​ ​​ ​​​​ via Loopback2, directly connected

L  ​​​​ 22:0:2::2/128 [0/0]

 ​​ ​​ ​​ ​​​​ via Loopback2, receive

C  ​​​​ 22:0:3::/64 [0/0]

 ​​ ​​ ​​ ​​​​ via Loopback3, directly connected

L  ​​​​ 22:0:3::2/128 [0/0]

 ​​ ​​ ​​ ​​​​ via Loopback3, receive

C  ​​​​ 23::/64 [0/0]

 ​​ ​​ ​​ ​​​​ via Ethernet0/0, directly connected

L  ​​​​ 23::A8BB:CCFF:FE00:200/128 [0/0]

 ​​ ​​ ​​ ​​​​ via Ethernet0/0, receive

O  ​​​​ 33:0:1::3/128 [110/10]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Ethernet0/0

O  ​​​​ 33:0:2::3/128 [110/10]

​​  ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Ethernet0/0

O  ​​​​ 33:0:3::3/128 [110/10]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Ethernet0/0

OI ​​ 34::/64 [110/74]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Ethernet0/0

OI ​​ 44:0:1::4/128 [110/74]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Ethernet0/0

OI ​​ 44:0:2::4/128 [110/74]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Ethernet0/0

OI ​​ 44:0:3::4/128 [110/74]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Ethernet0/0

L  ​​​​ FF00::/8 [0/0]

 ​​ ​​ ​​ ​​​​ via Null0, receive

 

 

  • Summarize IPv6 OSPF routes on ABR router

! (In OSPF​​ Summary is always done on Area Border Router (ABR))

R1:

telnet 12.0.0.2​​ 

password: cisco

R2>enable

password: cisco

 

R2#show ipv6 ospf database

! (Shows details of OSPF database based on Area Perspective and LSA Perspective)​​ 

 

OSPFv3 Router with ID​​ (22.0.3.2) (Process ID 2)

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Router Link States (Area 0)

 

ADV Router  ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Fragment ID ​​ Link count ​​ Bits

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1421  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000002 ​​ 0  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 1  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ B

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1422  ​​​​  ​​ ​​ ​​ ​​​​ 0x80000002 ​​ 0  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 1  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ B

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Net Link States (Area 0)

 

ADV Router  ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Link ID  ​​ ​​​​ Rtr count

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1422  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 3  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 2

 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Inter Area Prefix Link States (Area​​ 0)

 

ADV Router  ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Prefix

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1476  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 11:0:1::1/128

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1476  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 11:0:2::1/128

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1476  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 11:0:3::1/128

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1476  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​​​ 12::/64

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1451  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 34::/64

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1440  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 44:0:1::4/128

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1440  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 44:0:2::4/128

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1440  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 44:0:3::4/128

 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Link (Type-8)​​ Link States (Area 0)

 

ADV Router  ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Link ID  ​​ ​​​​ Interface

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1486  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 3  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Et0/0

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1462  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 3  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Et0/0

 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Intra Area Prefix Link States (Area 0)

 

ADV Router  ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Link ID  ​​ ​​​​ Ref-lstype ​​ Ref-LSID

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1421  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000002 ​​ 0  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 0x2001  ​​ ​​ ​​ ​​​​ 0

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1422  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000002 ​​ 0  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 0x2001  ​​ ​​ ​​ ​​​​ 0

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1422  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 3072  ​​ ​​ ​​​​  ​​​​ 0x2002  ​​ ​​ ​​ ​​​​ 3

 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Router Link States (Area 1)

ADV Router  ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Fragment ID ​​ Link count ​​ Bits

​​ 11.0.3.1  ​​ ​​ ​​ ​​ ​​ ​​​​ 1487  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000002 ​​ 0  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 1  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ None

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1486  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 0​​  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 1  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ B

 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Inter Area Prefix Link States (Area 1)

ADV Router  ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Prefix

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1476  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 22:0:1::2/128

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1476  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 22:0:2::2/128

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1476  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 22:0:3::2/128

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1476  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 23::/64

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1416  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 33:0:1::3/128

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1416  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 33:0:2::3/128

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1416  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 33:0:3::3/128

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1416  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 44:0:3::4/128

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1416  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 44:0:2::4/128

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1416  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 44:0:1::4/128

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1416  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 34::/64

 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Link (Type-8) Link States (Area 1)

 

ADV Router  ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Link ID  ​​ ​​​​ Interface

​​ 11.0.3.1  ​​ ​​ ​​ ​​ ​​ ​​​​ 1590  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 11  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Se2/0

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1486  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 11  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Se2/0

 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Intra Area Prefix Link States (Area 1)

 

ADV Router  ​​ ​​​​  ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Link ID  ​​ ​​​​ Ref-lstype ​​ Ref-LSID

​​ 11.0.3.1  ​​ ​​ ​​ ​​ ​​ ​​​​ 1547  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000003 ​​ 0  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 0x2001  ​​ ​​ ​​ ​​​​ 0

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1486  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 0  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 0x2001  ​​ ​​ ​​ ​​​​ 0

 

R2:

ipv6 router ospf 1

area 1 range 11::/16

area 0 range​​ 22::/16

exit

 

telnet 23.0.0.3

password: cisco 

R3>enable

password: cisco

 

R3# show ipv6 ospf database

 

OSPFv3 Router with ID (33.0.3.3) (Process ID 3)

 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Router Link States (Area 0)

 

ADV Router  ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Fragment ID ​​ Link​​ count ​​ Bits

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1674  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000002 ​​ 0  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 1  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ B

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1673  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000002 ​​ 0  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 1  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ B

 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Net Link States (Area 0)

 

ADV Router  ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Link ID  ​​ ​​​​ Rtr count

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1673  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 3  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 2

 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Inter Area Prefix Link States (Area 0)

 

ADV Router  ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Prefix

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1730  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 12::/64

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 124  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 11::/16

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1704  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 34::/64

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1693  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 44:0:1::4/128

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1693  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 44:0:2::4/128

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1693  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 44:0:3::4/128

 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Link (Type-8) Link States​​ (Area 0)

 

ADV Router  ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Link ID  ​​ ​​​​ Interface

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1740  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 3  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Et0/0

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1714  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 3  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Et0/0

 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Intra Area Prefix Link States (Area 0)

 

ADV Router ​​ ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Link ID  ​​ ​​​​ Ref-lstype ​​ Ref-LSID

​​ 22.0.3.2  ​​ ​​ ​​ ​​ ​​ ​​​​ 1674  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000002 ​​ 0  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 0x2001  ​​ ​​ ​​ ​​​​ 0

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1673  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000002 ​​ 0  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 0x2001  ​​ ​​ ​​ ​​​​ 0

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1673  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 3072  ​​ ​​ ​​ ​​ ​​​​ 0x2002  ​​​​  ​​ ​​​​ 3

 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Router Link States (Area 2)

 

ADV Router  ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Fragment ID ​​ Link count ​​ Bits

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1697  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000002 ​​ 0  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 1  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ B

​​ 44.0.3.4  ​​ ​​ ​​ ​​ ​​ ​​​​ 1698  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 0  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 1  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ None

 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Inter Area Prefix Link States (Area 2)

 

ADV Router  ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Prefix

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1704  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 33:0:1::3/128

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1704  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 33:0:2::3/128

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1704  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 33:0:3::3/128

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1704  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 23::/64

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1669  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 22:0:1::2/128

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1669  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 22:0:2::2/128

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1669  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 22:0:3::2/128

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1669 ​​  ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 12::/64

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 123  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 11::/16

 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Link (Type-8) Link States (Area 2)

 

ADV Router  ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Link ID  ​​ ​​​​ Interface

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1714  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 11  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Se2/0

​​ 44.0.3.4  ​​ ​​ ​​ ​​ ​​ ​​​​ 1699  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 11  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Se2/0

 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Intra Area Prefix Link States (Area 2)

 

ADV Router  ​​ ​​ ​​ ​​ ​​​​ Age  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ Seq#  ​​ ​​ ​​ ​​ ​​ ​​​​ Link ID  ​​ ​​​​ Ref-lstype ​​ Ref-LSID

​​ 33.0.3.3  ​​ ​​ ​​ ​​ ​​ ​​​​ 1714  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 0  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 0x2001  ​​ ​​ ​​ ​​​​ 0

​​ 44.0.3.4​​  ​​ ​​ ​​ ​​ ​​ ​​​​ 1698  ​​ ​​ ​​ ​​ ​​ ​​​​ 0x80000001 ​​ 0  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 0x2001  ​​ ​​ ​​ ​​​​ 0

 

R3:

ipv6 router ospf 1

area 0 range 22::/16

exit

 

​​ [Connection to 23.0.0.3 closed by foreign host]

Task 2: ​​ Verification

  • Verify receipt of summary route in neighbor routing table & verify creation of​​ null interface in routing table by following command:

 

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 route

 ​​ ​​ ​​ ​​ ​​ ​​​​ B​​ - BGP, HA - Home Agent, MR - Mobile Router, R - RIP

 ​​ ​​ ​​ ​​ ​​ ​​​​ H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea

 ​​ ​​ ​​ ​​ ​​ ​​​​ IS - ISIS summary, D - EIGRP, EX - EIGRP external, NM - NEMO

 ​​ ​​ ​​ ​​ ​​ ​​​​ ND - ND Default, NDp - ND Prefix, DCE - Destination, NDr -​​ Redirect

 ​​ ​​ ​​ ​​ ​​ ​​​​ O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2

 ​​ ​​ ​​ ​​ ​​ ​​​​ ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2, l​​ –​​ LISP

 

O  ​​​​ 11::/16 [110/64]

 ​​ ​​ ​​ ​​​​ via Null0, directly connected

O  ​​​​ 11:0:1::1/128 [110/64]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:100, Serial2/0

O  ​​​​ 11:0:2::1/128 [110/64]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:100, Serial2/0

O  ​​​​ 11:0:3::1/128 [110/64]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:100, Serial2/0

C  ​​​​ 12::/64 [0/0]

 ​​ ​​ ​​ ​​​​ via Serial2/0, directly connected

L  ​​​​ 12::A8BB:CCFF:FE00:200/128 [0/0]

 ​​ ​​ ​​ ​​​​ via Serial2/0, receive

O  ​​​​ 22::/16 [110/0]

 ​​ ​​ ​​ ​​​​ via Null0, directly connected

C  ​​​​ 22:0:1::/64 [0/0]

 ​​ ​​ ​​​​ via Loopback1, receive

C  ​​​​ 22:0:2::/64 [0/0]

 ​​ ​​ ​​ ​​​​ via Loopback2, directly connected

L  ​​​​ 22:0:2::2/128 [0/0]

 ​​ ​​ ​​ ​​​​ via Loopback2, receive

C  ​​​​ 22:0:3::/64 [0/0]

 ​​ ​​ ​​ ​​​​ via Loopback3, directly connected

L  ​​​​ 22:0:3::2/128 [0/0]

 ​​ ​​ ​​ ​​​​ via Loopback3, receive

C  ​​​​ 23::/64 [0/0]

 ​​ ​​ ​​ ​​​​ via Ethernet0/0, directly connected

L  ​​​​ 23::A8BB:CCFF:FE00:200/128 [0/0]

 ​​ ​​ ​​ ​​​​ via Ethernet0/0, receive

O  ​​​​ 33:0:1::3/128 [110/10]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Ethernet0/0

O  ​​​​ 33:0:2::3/128 [110/10]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Ethernet0/0

O  ​​​​ 33:0:3::3/128 [110/10]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Ethernet0/0

OI ​​ 34::/64 [110/74]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Ethernet0/0

OI ​​ 44:0:1::4/128 [110/74]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Ethernet0/0

OI ​​ 44:0:2::4/128 [110/74]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Ethernet0/0

OI ​​ 44:0:3::4/128 [110/74]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Ethernet0/0

L  ​​​​ FF00::/8 [0/0]

 ​​ ​​ ​​ ​​​​ via​​ Null0, receive

 

(ABR Router will send summary routes from one area to other areas. When summarization is configured on a router, same router immediately created a routing point to Null 0 for loop prevention. Hence Null 0 will be created only on ABR routers in OSPF.)

 

R4#show ipv6 route

! (Shows router’s routing table and IPv6 routes entries)

 

IPv6 Routing Table - default - 16 entries

Codes: C - Connected, L - Local, S - Static, U - Per-user Static route

 ​​ ​​ ​​ ​​ ​​ ​​​​ B - BGP, HA - Home Agent, MR - Mobile Router,​​ R - RIP

 ​​ ​​ ​​ ​​ ​​ ​​​​ H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea

 ​​ ​​ ​​ ​​ ​​ ​​​​ IS - ISIS summary, D - EIGRP, EX - EIGRP external, NM - NEMO

 ​​ ​​ ​​ ​​ ​​ ​​​​ ND - ND Default, NDp - ND Prefix, DCE - Destination, NDr - Redirect

 ​​ ​​ ​​ ​​ ​​ ​​​​ O - OSPF Intra, OI - OSPF Inter,​​ OE1 - OSPF ext 1, OE2 - OSPF ext 2

 ​​ ​​ ​​ ​​ ​​ ​​​​ ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2, l​​ –​​ LISP

 

OI ​​ 11::/16 [110/138]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Serial2/0

OI ​​ 12::/64 [110/138]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Serial2/0

OI ​​ 22::/16 [110/74]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Serial2/0

OI ​​ 23::/64 [110/74]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Serial2/0

OI ​​ 33:0:1::3/128 [110/64]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Serial2/0

OI ​​ 33:0:2::3/128 [110/64]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Serial2/0

OI ​​ 33:0:3::3/128 [110/64]

 ​​ ​​ ​​ ​​​​ via FE80::A8BB:CCFF:FE00:300, Serial2/0

C  ​​​​ 34::/64 [0/0]

 ​​ ​​ ​​ ​​​​ via Serial2/0, directly connected

L  ​​​​ 34::A8BB:CCFF:FE00:400/128 [0/0]

 ​​ ​​ ​​ ​​​​ via Serial2/0, receive

C  ​​​​ 44:0:1::/64 [0/0]

 ​​ ​​ ​​ ​​​​ via Loopback1, directly connected

L​​  ​​​​ 44:0:1::4/128 [0/0]

 ​​ ​​ ​​ ​​​​ via Loopback1, receive

C  ​​​​ 44:0:2::/64 [0/0]

 ​​ ​​ ​​ ​​​​ via Loopback2, directly connected

L  ​​​​ 44:0:2::4/128 [0/0]

 ​​ ​​ ​​ ​​​​ via Loopback2, receive

C  ​​​​ 44:0:3::/64 [0/0]

 ​​ ​​ ​​ ​​​​ via Loopback3, directly connected

L  ​​​​ 44:0:3::4/128 [0/0]

 ​​ ​​ ​​ ​​​​ via​​ Loopback3, receive

L  ​​​​ FF00::/8 [0/0]

 ​​ ​​ ​​ ​​​​ via Null0, receive

 

(Summarized routes are received from inter-area.)

 

 

 

 

 

 

 

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