This document discusses various IPv6 configuration topics including: - Link-local, unique local, and global addressing configurations on routers. - IPv6 auto-configuration using router advertisements for address assignment. - Configuring IPv6 routing protocols like RIPng, EIGRPv6, and OSPFv3 including route summarization, filtering, and default routing. - IPv6 multicast configurations including PIM-SM, MLD, BSR, and SSM. - IPv6 tunneling configurations for 6to4, manual tunnels, and NAT-PT.

1. IPv6
Alp ISIK

2. 9.1 Link-local addressing
• At R1 - // similiar at R2-R3-R4
int s2/0
ipv6 address fe80::1 link-local
frame-relay map ipv6 fe80::5 105 broadcast
frame-relay map ipv6 fe80::2 105
frame-relay map ipv6 fe80::3 105
frame-relay map ipv6 fe80::4 105
At R5
interface Serial2/0
ipv6 address FE80::5 link-local
frame-relay map ipv6 FE80::4 504 broadcast
frame-relay map ipv6 FE80::3 503 broadcast
frame-relay map ipv6 FE80::2 502 broadcast
frame-relay map ipv6 FE80::1 501 broadcast
frame-relay map ip 155.1.0.4 504 broadcast
frame-relay map ip 155.1.0.3 503 broadcast
frame-relay map ip 155.1.0.2 502 broadcast
frame-relay map ip 155.1.0.1 501 broadcast

3. IPv6 Unique Local Addressing
interface Ethernet0/0
ipv6 address FC00:1:0:37::3/64

4. 9.3 global Aggregatable Addressing
• At R5
interface Serial2/0
ipv6 address 2001:1:0:1234::5/64
frame-relay map ipv6 2001:1:0:1234::4 501
frame-relay map ipv6 2001:1:0:1234::3 501
frame-relay map ipv6 2001:1:0:1234::2 501
frame-relay map ipv6 2001:1:0:1234::1 501

5. 9.4 EUI Addressing
• At R1
int e0/0
ipv6 address 2001:1:0:146::/64 eui-64
show ipv6 int bri
Ethernet0/0 [up/up]
FE80::A8BB:CCFF:FE00:100
2001:1:0:146:A8BB:CCFF:FE00:100

6. ***9.5 IPv6 Auto-coniguration ***
• Ipv4’daki DHCP nin gorevi olan IP dağıtımını IPv6’te routerlar, neighbor
discovery router advertisement paketleri ile yapabilirler.
• At R5
ipv6 unicast-routing
(config-if)#ipv6 addr fc00:1:0:58::5/64
ipv6 addr fc00:1:0:85::5/64
ipv6 nd prefix fc00:1:0:58::/64 14400 14400 no-autoconfig
// kullanılmamasını istediğimiz prefixlerde no autoconfig
girdik. ****//trouble shoot ederken dikkat edilmeli.**** gizli komut
ipv6 nd prefix fc00:1:0:85::/64 14400 14400
ipv6 nd ra-inter 40
ipv6 nd ra-life 60
*** no ipv6 nd ra suppress // defaultta boyle geliyor ama
troubleshoot ederken dikkat edilmeli.
• At SW2
• **IPv6 i switchlerde acabilmek icin //”sdm prefer dual-ipv4-and-ipv6
routing” komutu + reboot gerekli
(config-if)#ipv6 address autoconfig default

7. 9.6 RIPng
• Global’de “ipv6 unicast-routing” açılır.
• IPv6 adresi configure edilmiş interface’de
açılır.//
interface Ethernet0/0
ipv6 address 2001:1:0:146::/64 eui-64
ipv6 rip RIPNG enable

8. RIPng over NBMA
• HUB’ta //split horizonu kapatmayı
unutmamalıyız.
Rack1R5(config)#ipv6 router rip RIPNG
Rack1R5(config-rtr)#no split-horizon

9. RIPng Summarization
• At R1
----------------
(config-if)#ipv6 rip RIPNG summary-address
fc00:1::/61

10. 9.9 RIPng Prefix Filtering
• R5
ipv6 router rip RIPNG
distribute-list prefix-list FILTER_R6_LO100 in
ipv6 prefix-list FILTER_R6_LO100 seq 5 deny FC00:1:0:6::/64
ipv6 prefix-list FILTER_R6_LO100 seq 10 permit ::/0 le 128

11. 9.10 RIPng Metric manipulation
• At R4
interface Serial2/1
ipv6 enable
ipv6 rip RIPNG enable
interface Serial2/0
ipv6 rip RIPNG metric-offset 2
R4#show ipv6 int bri
Serial2/1 [up/up]
FE80::A8BB:CCFF:FE00:400 // ipv6 enable komutu
otomatik link-local adresi oluşturdu.

12. 9.11 RIPng Default routing
• At R6
------
Rack1R6(config-if)#
ipv6 rip RIPNG default-information originate metric 5

13. 9.12 EIGRPv6
• Diğer v6 routing protokollerinde olduğu gibi
//ipv6 unicast-routing açılır.
ipv6 router eigrp 100
no shut // eigrpye ozel acılır.

14. 9.13 EIGRPv6 Summarization
• At R5
int s2/1
ipv6 summary-address eigrp 100 fc00:1::/60
int s2/0
ipv6 summary-address eigrp 100 fc00:1::/60

15. 9.14 EIGRP Prefix Filtering
• At R5
ipv6 router eigrp 100
distribute-list prefix-list FILTER_R6_LO100 in
ipv6 prefix-list FILTER_R6_LO100 seq 5 deny FC00:1:0:6::/64
ipv6 prefix-list FILTER_R6_LO100 seq 10 permit ::/0 le 128

16. 9.15 EIGRPv6 Metric Manupulation
• At R4, R5, R6, SW2
ipv6 router eigrp 100
variance 3
metric weights 0 0 0 1 0 0
• At R4 ve R5
int s2/0
delay 2000
int s2/1
delay 1000

17. 9.16 EIGRPv6 Default Routing
• Default route basmanın iki yolu var, summarization ve
redistribution.
• Redistribution’da, eigrp external ve AD170 olarak
gondeririz.
• Summarization da ise leak-map olmadığı için diğer bütün
routelar suppress edilir.
• At R6
-----------
Rack1R6(config-if)#ipv6 summary-address eigrp 100 ::/0 ?
<1-255> Administrative distance
<cr>
Rack1R6(config-if)#ipv6 summary-address eigrp 100 ::/0 5

18. 9.17 OSPFv3
• At SW1
interface Ethernet0/3
ipv6 address FC00:1:0:37::7/64
ipv6 ospf network point-to-point
ipv6 ospf 1 area 37
interface Ethernet1/0
ipv6 address FC00:1:0:67::7/64
ipv6 ospf hello-interval 1
ipv6 ospf 1 area 0
ipv6 router ospf 1
router-id 150.1.7.7

19. 9.18 OSPF over NBMA
• At R2
ipv6 unicast-routing
interface Serial2/0
ipv6 address FE80::2 link-local
ipv6 ospf network point-to-multipoint non-broadcast
ipv6 ospf neighbor FE80::5
ipv6 ospf 1 area 0
ipv6 router ospf 1
router-id 150.1.2.2
• At R5
ipv6 unicast-routing
interface Serial2/0
ipv6 address FE80::5 link-local
ipv6 ospf network point-to-multipoint non-broadcast
ipv6 ospf neighbor FE80::2
ipv6 ospf 1 area 0
ipv6 router ospf 1
router-id 150.1.5.5

20. 9.19 OSPFv3 Virtual Links
• At SW1
---------
ipv6 router ospf 1
area 37 virtual-link 150.1.3.3
• At R3
---------
ipv6 router ospf 1
area 37 virtual-link 150.1.7.7

21. 9.20 OSPFv3 Summarization
• Rack1R5
ipv6 router ospf 1
area 58 range fc00:1::/56
int e0/0
ipv6 ospf 1 area 58
• SW2
interface Loopback100
ipv6 address FC00:1:0:8::8/64
ipv6 ospf 1 area 58
interface Loopback101
ipv6 address FC00:1:0:88::88/64
ipv6 ospf 1 area 58
interface vl58
ipv6 ospf 1 area 58

22. 9.21 IPv6 Redistribution
• At R5
ipv6 router eigrp 100
redistribute rip RIPNG metric 1000 0 255 1 1500 include-connected
redistribute ospf 1 metric 1000 0 255 1 1500 include-connected
ipv6 router ospf 1
redistribute connected metric 8
redistribute rip RIPNG metric 8
redistribute eigrp 100 metric 8
ipv6 router rip RIPNG
redistribute eigrp 100 metric 8 include-connected
redistribute ospf 1 metric 8 include-connected
• At R6
ipv6 router ospf 1
distance ospf extern 171

23. 9.22 IPv6 Filtering
• At R3
int s2/0
ipv6 traffic-filter FILTER_OUT out
ipv6 traffic-filter FILTER_IN in
ipv6 access-list FILTER_OUT
permit tcp FC00:1:0:67::/64 any eq www
permit tcp FC00:1:0:67::/64 any range ftp-data ftp
permit tcp FC00:1:0:67::/64 any eq whois
ipv6 access-list FILTER_IN
permit tcp any eq www FC00:1:0:67::/64
permit tcp any range ftp-data ftp FC00:1:0:67::/64
permit tcp any eq whois FC00:1:0:67::/64
permit 89 any any
• AT R5
ip http server

24. 9.23 IPv6 NAT-PT
• At SW1
ipv6 route 2000::/96 fc00:1:67::6
• R6
int e0/0.67
ipv6 nat
int e0/0.146
ipv6 nat
ipv6 nat v6v4 source fc00:1:0:67::7 155.1.146.7
ipv6 nat v4v6 source 150.1.4.4 2000::9601:0404
ipv6 nat prefix 2000::/96
ipv6 router rip RIPNG
redistribute connected
SW1
R6
R4
ipv6 route 2000::/96 fc00:1:67::6
ipv6 nat
ipv6 nat
fc00:1:0:67::7
fc00:1:67::6
155.1.146.7
150.1.4.4

25. 9.24 IPv6 MP-BGP
• At R1
router bgp 100
neighbor 2001:1:0:1234::5 remote-as 500
address-family ipv6 unicast
neighbor 2001:1:0:1234::5 activate
network 2003:1:0:1::/64
network 2003:1:0:10::/61
aggregate-address 2003:1::/59 summary-only
• At R5
router bgp 500
address-family ipv6 unicast
neighbor 2001:1:0:1234::1 remote 100
neighbor 2001:1:0:1234::1 activate

26. 9.25 IPv6 PIM and MLD
• IPv6 multicast-routing’i
actıgımızda PIMv2 otomatik
olarak butun interface’lerde acılır,
kapatmak istediğimiz
interface’lerde tek tek no ipv6 pim
yazarız.
• Rack1R1
ipv6 multicast-routing
int s2/1
no ipv6 pim
• Rack1R3
ipv6 multicast-routing
int s2/2
no ipv6 pim
• Rack1R4
ipv6 multicast-routing
int s2/2
no ipv6 pim
• R5
ipv6 multicast-routing
ipv6 access-list MLD_FILTER
permit ipv6 any ff08::/64
int e0/0
ipv6 mld access-group MLD_FILTER
ipv6 mld join-group ff08::8
ipv6 mld query-interval 10

27. 9.26 IPv6 PIM BSR
• Rack1R6
ipv6 pim bsr candidate rp fc00:1:0:6::6 prio 100
• Rack1R4
ipv6 pim bsr candidate bsr fc00:1:0:4::4 prio 100
• Rack1R5
ipv6 route fc00:1:0:4::/64 ser 2/1 multicast //statcic
mroute yazımı için ipv6 te sona “multicast” eklenir.
• Rack1R1
ipv6 route fc80:1:0:4::/64 e0/0
FE80::A8BB:CCFF:FE00:410 multicast //
FE80::A8BB:CCFF:FE00:410 is link-local of R4 vl146

28. 9.27 IPv6 Embeded RP
• Same as static RP
• At R5
ipv6 mld join-group ff76:0640:2001:cc1e::8
• At R6
int lo 300
ipv6 add 2001:cc1e::6/128
ipv6 eigrp 100
ipv6 rip RIPNG enable

29. 9.28 IPv6 SSM
• R5
int e0/0
ipv6 mld join-group ff36::8 2001:1:0:146:21A:2FFF:FE78:4678

30. 9.29 IPv6 Tunnelling
• At R6
interface Tunnel26
ipv6 address 2001:1:0:26::6/64
tunnel source Loopback0
tunnel destination 150.1.2.2
interface Tunnel56
ipv6 address 2001:1:0:56::6/64
tunnel source Loopback0
tunnel destination 150.1.5.5
tunnel mode ipv6ip
ipv6 route 2001:1:0:2::/64 Tunnel26
ipv6 route 2001:1:0:5::/64 Tunnel56
int lo100
ipv6 address 2001:1:0:6::6/64
• At R2
ipv6 unicast-routing
interface Tunnel26
ipv6 address 2001:1:0:26::2/64
tunnel source Loopback0
tunnel destination 150.1.6.6
int lo100
ipv6 address 2001:1:0:2::2/64
• R5
interface Tunnel56
ipv6 address 2001:1:0:56::6/64
tunnel source Loopback0
tunnel destination 150.1.6.6
tunnel mode ipv6ip
int lo100
ipv6 address 2001:1:0:5::5/64

31. 9.30 Automatic 6to4 Tunnelling
• At R5
interface Tunnel345
ipv6 address 2002:9601:505::5/64
tunnel source Loopback0
tunnel mode ipv6ip 6to4
ipv6 route 2002::/16 Tunnel345
int lo200
ipv6 address 2002:9601:505:1::5/64
Not : there is no tunnel destination in config
Ipv6 adresi aşağıdaki formatta olur:
2002:IPv4Address:Subnet ID : Interface ID
(16 bits) : (32 bits) : (16 bits) : (64 bits)
Oncelikle Ipv6 adresine gomulu IPv4 adresi üzerinden karşı taraf için
destination adresi oluştururuz. Bütün 2002:: ya giden paketleri
tunele yollayarak erişimi sağlarız.

32. • R3
int tunnel 345
tunnel source lo0
tunnel mode ipv6ip 6to4
ipv6 address 2002:9601:303::3/64
ipv6 route 2002::/16 Tunnel 345
int lo200
ipv6 address 2002:9601:303:1::3/64
• R4
int tunnel 345
tunnel source lo0
tunnel mode ipv6ip 6to4
ipv6 address 2002:9601:404::4/64
ipv6 route 2002::/16 Tunnel 345
int lo200
ipv6 address 2002:9601:404:1::4/64

33. R3#ping 2002:9601:0303:64::3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to
2002:9601:303:64::3,
timeout is 2 seconds:
!!!!!
Gateway olarak ipv4 adresini kullanır.
Protocol id 41 // firewall’da izin
verilmeli.

34. WB2 lab9 3.1
R4
R6
R5
R3
İpv6ip 6to4
İpv6ip 6to4İpv6ip 6to4
İpv6ip 6to4
İpv4 cloud tunnel
tunnel
tunnel
tunnel
Lo0
İpv6 addr
Lo0
İpv6 addr
Lo0
İpv6 addr
Lo0
İpv6 addr
Static route for
loopbacks over tunnel
Static route for
loopbacks over tunnel
Static route for
loopbacks over tunnel
Static route for
loopbacks over tunnel

35. 9.31 ISATAP Tunnelling
• At R3
interface Tunnel345
ipv6 address 2001:1:0:345::/64 eui-64
tunnel source Loopback0
tunnel mode ipv6ip isatap
ipv6 route 2001:1:0:5::/64 2001:1:0:345:0:5EFE:9601:505
ipv6 route 2001:1:0:4::/64 2001:1:0:345:0:5EFE:9601:404
int lo100
ipv6 address 2001:1:0:3::3/64
• At R5
interface Tunnel345
ipv6 address 2001:1:0:345::/64 eui-64
tunnel source Loopback0
tunnel mode ipv6ip isatap
ipv6 route 2001:1:0:3::/64 2001:1:0:345:0:5EFE:9601:303
ipv6 route 2001:1:0:4::/64 2001:1:0:345:0:5EFE:9601:404
int lo100
ipv6 address 2001:1:0:5::5/64

36. • At R4
interface Tunnel345
ipv6 address 2001:1:0:345::/64 eui-64
tunnel source Loopback0
tunnel mode ipv6ip isatap
ipv6 route 2001:1:0:4::/64 2001:1:0:345:0:5EFE:9601:303
ipv6 route 2001:1:0:4::/64 2001:1:0:345:0:5EFE:9601:505
int lo100
ipv6 address 2001:1:0:4::4/64
• Source lo0 adresinden tunnel ipv6 adresini oluşturuyor.
R1#sh ipv6 int br
Tunnel345 [up/up]
FE80::5EFE:9601:303
2001:1:0:345:0:5EFE:9601:303

37. R3#ping 2001:1:0:345:0:5EFE:9601:404
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to
2001:1:0:345:0:5EFE:9601:404, timeout is 2
seconds:
!!!!!
PS : Protocol id 41