User's Manual

IPv6 Stateless address autoconfiguration
The IP Deskphone supports stateless address autoconfiguration as defined by RFC 2463 and
RFC 2461.
Stateless and stateful (DHCPv6) address autoconfiguration can be used simultaneously. For
example, the IP Deskphone IP address can be obtained by stateless address autoconfiguration
and configuration information can be obtained by stateful (DHCPv6) address
autoconfiguration.
The IPV6_STATELESS YES | NO device configuration parameter allows stateless address
autoconfiguration to be disabled. Stateless address autoconfiguration is disabled by default.
IPv6 stateful address autoconfiguration
IPv6 stateful address autoconfiguration (DHCPv6) protocol can be used separately or
concurrently with stateless autoconfiguration to obtain configuration parameters as defined by
RFC 3315.
The DHCPv6 server can provide IP addresses to a client and other configuration information,
which are carried in options. DHCPv6 is extended through the definition of new options codes
in OPTION_VENDOR_OPTS option 17.
DHCPv6 is the primary mechanism for the IPv6 address allocation and the stateless address
allocation is optional. DHCP is enabled by default. DHCP can be manually disabled on the IP
Deskphone.
DHCP dual mode operation
In a dual mode, DHCPv4 and DHCPv6 clients run in parallel. The DHCPv4 client can provide
IPv4 configuration attributes, such as IPv4 address, IPv4 Subnet Mask, GW IPv4 address,
Voice VLAN ID, Provisioning Server address, and menulock option). This can complement
partial implementation of DHCPv6 client. When IPv6 is disabled, DHCPv6 is disabled, as
well.
DHCPv6 provides configuration attributes for the Phone IP address, DNS Server address, and
SIP Server address.
A maximum of one Phone IP address, two SIP Server IP addresses, and one Provisioning
Server IP address are supported. The first two SIP Server IP addresses are assigned to S1
and S2 for the first domain name. If the DHCPv6 server is configured with the SIP proxy IPv6
address, the IP Deskphone registers with the IPv6 address.
Internet Protocol version 6
306 SIP Software for Avaya 1100 Series IP Deskphones-Administration November 2012
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