Lab 1. IPv6

To activate IPv6, please do command ‘ipv6 unicast-routing’

In IPv6 there are

• Link-Local Address. This IP used for neighbor discovery. The IP begin with FE80::/10
• Global Unicast Address. This is the same as IP public in IPv4
• EUI-64 Address.

There are 2 ways to create link-local unicast address:

1. Automatic
2. Manual

Let’s do the lab

R1#

ipv6 unicast-routing                        ----- > must activate to be able routing in ipv6

interface Loopback0

 ipv6 address 1::1/128

interface FastEthernet0/0

 ipv6 address FE80::1 link-local          --- -> create link-local unicast address manually

 ipv6 address 12::1/126                       --- -> create global unicast address

 ipv6 address 21::/64 eui-64                --- ->  create EUI-64 Address

 ipv6 address autoconfig                     --- -> create link-local automatically

 ipv6 enable

R2#

ipv6 unicast-routing

interface Loopback0

 ipv6 address 2::2/128

interface FastEthernet0/0

 ipv6 address FE80::2 link-local

 ipv6 address 12::2/126

 ipv6 address 21::/64 eui-64

 ipv6 address autoconfig

 ipv6 enable

From this lab, we can see that in IPv6, interface can have multiple IPv6 address

Lets’s check and verify the IPv6

R1(config-if)#do sh ipv6 int brie

FastEthernet0/0            [up/up]

    FE80::1                                           - - > link-local unicast address

    12::1                                                --- -> global unicast address

    21::1                                                --- -> EUI-64 address

FastEthernet0/1            [administratively down/down]

Loopback0                    [up/up]

    FE80::C200:1FFF:FEC8:0

    1::1

R2(config-if)#do sh ipv6 int brie

FastEthernet0/0            [up/up]

    FE80::2

    12::2

    21::2

FastEthernet0/1            [administratively down/down]

Loopback0                  [up/up]

    FE80::C201:1FFF:FEC8:0

    2::2

Let’s try ping IP P2P

R2(config-if)#do ping 12::1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 12::1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 16/28/48 ms

R2(config-if)#do ping 21::1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 21::1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 12/23/56 ms

R1(config-if)#do ping FE80::1

Output Interface: F0/0

% Invalid interface. Use full interface name without spaces (e.g. Serial0/1)

Output Interface: fastethernet0/0

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to FE80::1, timeout is 2 seconds:

Packet sent with a source address of FE80::1

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/4 ms