Basics to advance level information about IPV6 Routed protocol along with configuration

1. IPV6 Address Types

2. Multicast

3. Anycast

4. IPV6 Address Format

5.  Global Unicast Addresses
 Equalant to IPv4 Public Addresses
 Issued by IANA
 Routable on Internet
 Hierarchical base Address
 Reduce router table size
 First 3 bits always 001
 Addresses starts with 2000… – 3FFF…

6. Link Local (ULA)
 Site Local
 FEC0…
 Link Local same like as apipa
 169.254.0.0/16 fe80::/10
Link local no routeable on internet
Use for icmp neighbour discovery
 Always starts with fe80
 Host part is randomly assigned
 Always assigned to your adapter (fffe)
 Even with static or DHCP assigned IP address
 Each interface can have same IP
 Can never be duplicate because its host portion comes
from MAC

7. Mulicast
 There is no Broadcast address in IPv6 but
every PC Multicast address
 Ff…
 Ff02::5
 Ff02::6
 255.255.255.255 = ff::1

8. IPV6 Address Resolution
 Ethernet
 ICMP6ND replaces ARP
 NBMA
 Static Resolution on multipoint interfaces like
Frame-Relay
 Inverse Neighbor Discover not yet implemented

9. ICMPv6 Neighbor Discovery
 ICMPv6 ND replaces IPv4 ARP
 NS Neighbor solicitation
 Ask for information about neighbor
 NA Neighbor Advertisement
 Advertise yourself to other neighbors
 RS Router solicitation
 Ask for information about local router
 RA Router Advertisement
 Advertise yourself as an avtive router

10. Abbreviated IPv6 Address
 Leading zero’s can b omitted
 Runs of 0’s can b consolidated once but (can b
done once in a single IPv6 Address.
 Fd59:8f91:f52d:0000:0001:0000:0000:0001
 Fd59:8f91:f52d::0001:0000:0000:0001
 Fd59:8f91:f52d::1:0:0:1
 Fd59:8f91:f52d:0:1::1

11. EUI-64
Extended unique Identifier
 Eui format can be used to cause the router to
populate the low-order 64 bits of an IPV6 Address
based on interface’s mac Address.

12.  2001:0cc8:0000:0000:00bc:00bb:0000:8bb6
 2001:cc8:0:0:bc:bb:0:8bb6
 2001:cc8::bc:bb:0:8bb6
 2001:cc8:0:0:bc:bb::8bb6
 2001:cc8::bc:bb::8bb6 (Invalid)

13.  Localhost 127.0.0.1 ::1
 Any 0.0.0.0 ::
 IPv4 Prefixes
 255.255.255.0/24
 255.255.0.0/16
 255.0.0.0/8

14. IPv6 Prefixes
 Fe00::/8
 2002::/3
 3fff:ffff::/32
 Loopback
 ::1/128
 127.0.0.0/24

16. IPV6-TUNNEL
OVER IPV4
 Migration of Ipv4 network to Ipv6
 Dual stack
 Tunnel
 Tunnel can be configured to encapsulate Ipv6 packets and
send those encapsulated packets over the tunnel. It can be
created Dynamically and statically.
 6 to 4
 6 to 4 tunnel uses a network prefix of 2002::/16 to
automatically interconnect IPV6 areas of a Network . Each
IPv6 area is assigned a 48 bit IPv6 Prefix.
Manual
A tunnel with Ipv4 source and Destination Address

17.  R1 configuration
 Interface tunnel 0
 Tunnel source 1.1.1.1
 Tunnel destination 2.1.1.2
 Ipv6 address 2003::1/64
 Tunnel mode ipv6ip
 R3 Configuraiton
 Interface tunnel 0
 Tunnel source 2.1.1.2
 Tunnel destination 1.1.1.1
 Ipv6 address2003::2/64
 Tunnel mode ipv6ip
Static Tunnel

18. Static Tunnel
 interface Tunnel1
 no ip address
 ipv6 address B:B:B:B::1/64
 ipv6 ospf 1 area 1
 tunnel source 192.168.1.1
 tunnel destination 192.168.1.2
 tunnel mode ipv6ip

19. IPv6 Routing
 IPv6 unicast routing off by default
 Dynamic routing through
 RIPng
 OSPFv3
 IS-IS
 BGP
 Next hope address will be the link local add.

20. RIPng Overview
 Similar working RIPv1/v2
 UDP port 521 multicast to FF02::9
 Configuration
 Interface level Ipv6 rip

21.  Tunnel IPv6 over IPv4
 IPv4 Mapped

22. Modified EUI-64 Address
 Ipv6 address are generated from the Mac address
of interface.
 Mac address is 48 bit
 IPV6 host address is 64 bit
 Extra 16 bits derived as follows
 Mac 1234.5678.9012
 Invert 7th most significant bit
 1034.5678.9012
 Insert “FFFE” in middle
 1034:56FF:FE78:9012