Additionally to IPv4, D-Series telephones support the use of IPv6 in a dual stack setup together with IPv4 or as IPv6 only. Shipped phones are configured with IPv6 disabled.

Additionally to being 'disabled', IPv6 supports the following modes:

  1. DHCP
  2. SLAAC

In DHCP mode, IPv6 address(es), routers, DNS servers and such things as provisioning information are retrieved from a local DHCPv6 server. SLAAC mode uses router advertisements send out by a software called 'router advertisement daemon' (e.g. for linux os: radvd) to configure the phone's network.

A 'manual' mode ist intentionally missing. Though it is possible to assign global IPv6 addresses to devices manually, it is highly unusual to do this. Therefore a router advertisement service needs to be present and configured correctly for IPv6 to work on D-Series telephones.

Option-Name Function
dhcp6_ia_na1_ia_addr1 global IPv6 address
dhcp6_name_servers list of name servers
dhcp6_domain_search search domain
dhcp6_tftp_server_name tftp-server to fetch provisioned config from
dhcp6_bootfile_name path to provisioned config (provisoning)
dhcp6_vendor_encapsulated_options vendor specific options
dhpc6_posix_timezone IEEE 1003.1 TZ String
dhcp6_tzdb_timezone reference to TZDB
dhcp6_ntp_servers list of ntp servers
dhcp6_vlan_id VLAN ID
dhcp6_vlan_qos VLAN Priority
Option-Name Function
ra1_addr global IPv6 address
ra1_from router address
ra1_rdnss list of DNS servers
ra1_dnssl search domain