Avaya IPv6 Manual de usuario Pagina 24

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Configuring IPv6 Services
1-24 118428-A Rev. A
Figure 1-5. Automatic IPv4 Tunnel
The following steps occur:
1. Router D receives the packet and determines that the next hop requires an
automatic tunnel.
2. Router D encapsulates the packet in an IPv4 header.
The source address in the IPv4 header is the IPv4 address of the local tunnel
interface on node D.
The destination address is the IPv4 address contained in the IPv4-compatible
IPv6 address. This is the address of an IPv4 interface on router J.
3. IPv4 routers in Region 2 forward the packet to Region 3.
4. IPv4/ IPv6 router in Region 3 forward the IPv4 packet to router J.
Region 1
Region 2
Region 3
IPv6
A
IPv4
IPv6
C
IPv4
IPv6
B
IPv4
IPv6
J
IPv4
IPv6
I
IPv4
IPv4
F
IPv4
G
IPv4
E
IPv6/V4
IPv6/V4
IPv4
Automatic
IPV4 tunnel
with end points
IPv6
D
IPv4
IPv6
H
IPv4
IP0041A
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