IPv6 TUNNELING STATIC & DYNAMIC TUNNELS

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These are the five methods of tunneling IPv6 traffic:

· Manual IPv6 tunnels
· Automatic IPv4-Compatible tunnels
· GRE
· Automatic 6to4 tunnels
· Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) Tunnels

· Manual IPv6 tunnels

Configurations (Manual IPv6 Mode )

GRE ( default tunnel mode) , it can transport other protocols besids ip. It requires definite

  specification of the tunnel IPv4 source and the tunnel  IPv4 destination. 

The only drawback of when you use this technique is the amount of administration you must perform when the  number of tunnels grows.

 :CONFIGURATION OF MANUAL TUNNEL: 

! CONFIGURATION OF  TUNNEL INTERFAE  OF R

!R1(config-if)#do sh run int tu1

interface Tunnel1

 no ip address

 ipv6 address 123::1/64

 ipv6 rip 1 enable

 tunnel source Loopback1

 tunnel destination 3.3.3.3

 tunnel mode ipv6ip

end

! CONFIGURATION OF  TUNNEL INTERFAE  OF R3

!

interface Tunnel1

 no ip address

 ipv6 address 123::2/64

 ipv6 rip 1 enable

 tunnel source Loopback1

 tunnel destination 1.1.1.1

 tunnel mode ipv6ip

end

Note : we can visit wonderful site http://packetlife.net/blog/2010/mar/15/6to4-ipv6-tunneling/

Configurations (Automatic IPv4-Compatible Mode)

6to4 Configuration

To configure 6to4 tunneling, we first need to create a tunnel interface on each dual-stack edge router.

 There are three key components relevant to 6to4:

The tunnel mode (6to4)

The tunnel source (IPv4 interface or address)

The 6to4 IPv6 address (within 2002::/16)

CONFIGURATION IN CASE OF DYNAMIC TUNNELS : AS FOLLOWS:

R1

int l1

ipv6 address 2002:101:101:1::1/64

int tu1

ipv6 address 2002:101:101::/128

tunnel source l1

tunnel mode ipv6ip 6to4

ipv6 route 2002::/16 tunnel 1

R3

int l1

ipv6 address 2002:303:303:1::1/64

int tu1

ipv6 address 2002:303:303::/128

tunnel source l1

tunnel mode ipv6ip 6to4

ipv6 route 2002::/16 tunnel 1

AND FINALLY :

ISATAP ( intra-site automatic Tunnel addressing protocol)

- last two quarter (7 - 8)

- ISATAP tunnels do not use a special reserved range of IPv6 address at all, instead

    using just normal IPv6 unicast prefixes.

YOU MUST VISIT MY VIDEO FOR THIS SECTION FOR BETTER UNDERSTANDING.