Internet Protocol Versions - Alcatel-Lucent 7705 Configuration Manual

The 7705 SAR supports IPv6 dual stack on Ethernet ports and the management port. IPv6
dual stack is also supported on DSL module ports and GPON module ports when the module
is installed in the 7705 SAR-M (variants with module slots), and on GPON interfaces via SFP
in the 7705 SAR-W. Dual stack allows both IPv4 and IPv6 to run simultaneously on the
interface.
Network IP addresses can be assigned manually, or assigned dynamically using DHCP when
the 7705 SAR is acting as a DHCP client. System IP addresses must be assigned manually.

Internet Protocol Versions

The 7705 SAR supports IP version 4 (IPv4 – RFC 791, Internet Protocol) and IP version 6
(IPv6 – RFC 2460, Internet Protocol, Version 6 Specification). The 7705 SAR can forward
IPv6 packets over static routes for network forwarding, IES services, and node management.
IPv6 is a newer version of IP, designed as a successor to IPv4. Some of the differences
between IPv4 and IPv6 are:
7705 SAR OS Router Configuration Guide
→ GPON module ports when the module is installed in the 7705 SAR-M (variants
with module slots)
→ 2-port 10GigE (Ethernet) module (v-port only) when the module is installed in
the 7705 SAR-M (variants with module slots)
→ GPON interface via SFP in the 7705 SAR-W
• network ports on the 4-port OC3/STM1 Clear Channel Adapter card (POS
encapsulation)
• expanded addressing capabilities — IPv6 increases the IP address size from 32 bits
(IPv4) to 128 bits, to support more levels of addressing hierarchy, a much greater
number of addressable nodes, and simplified autoconfiguration of addresses
• header format simplification — some IPv4 header fields have been dropped or made
optional to reduce the processing cost of packet handling and to limit the bandwidth
cost of the IPv6 header
• improved support for extensions and options — changes in the way IP header options
are encoded allows for more efficient forwarding, less stringent limits on the length
of options, and greater flexibility for introducing new options in the future
• flow labeling capability — the capability to enable the labeling of packets belonging
to particular traffic flows for which the sender requests special handling, such as
non-default quality of service (QoS) or real-time service, was added in IPv6
• authentication and privacy capabilities — extensions to support authentication, data
integrity, and (optional) data confidentiality are specified for IPv6
IP Router Configuration
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