Configuring IP Router Parameters
34 Router Configuration Guide
• IPv6 services to enterprise customers and home users — Figure 6 shows IPv6
connectivity to enterprise and home broadband users.
Figure 6: IPv6 Services to Enterprise Customers and Home Users
• IPv6 over IPv4 relay services — IPv6 over IPv4 tunnels are one of many IPv6
transition methods to support IPv6 in an environment where not only IPv4 exists but
native IPv6 networks depend on IPv4 for greater IPv6 connectivity. Alcatel-Lucent
router supports dynamic IPv6 over IPv4 tunneling. The ipv4 source and destination
address are taken from configuration, the source address is the ipv4 system address
and the ipv4 destination is the next hop from the configured 6over4 tunnel.
IPv6 over IPv4 is an automatic tunnel method that gives a prefix to the attached IPv6
network. Figure 7 shows IPv6 over IPv4 tunneling to transition from IPv4 to IPv6.
Figure 7: IPv6 over IPv4 Tunnels
IPIPE_009
IPv6 Core
Enterprise
IPv6 Broadband Users
DSL, Cable
FTTH
ISP
IPv4
IPv6 Host
IPv6 Host
IPv6
Network
IPv6
Network
IPv4
header
IPv6
data
IPv6
header
IPv6
header
IPv6
data
IPv6
header
IPv6
data
Dual-stack
router
Dual-stack
router
Tunnel: IPv6 in IPv4 packet
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