IPV6 ADDRESSING
- 2. Multicast
- 3. Anycast
- 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