IPv6

Default = Disabled

IP Office supports IPv6 on Linux-based IP Office systems only. When enabled, the IP Office system supports IPv6 features on the LAN.

• If using the IP Office self-signed certificates, you must regenerate the self-signed IP Office certificates after enabling IPv6 support.

• You can also configure the IP Office system IPv6 address settings through the server Platform View/Web Control menus.

• Avaya supports IPv6 on IP Office LAN1. Avaya also supports IPv6 on LAN2 but only when IPv6 is enabled on LAN1 also.

IP Address

Default = Blank

Sets or shows the IP Office IPv6 address on the LAN.

• You cannot change the address if the IP Office is a DHCPv6 client.

• You cannot change the address if the IP Office is using Stateless Address Auto-configuration (SLAAC).

• If setting a static address, the IP Office supports /64 subnet prefixes only.

  • The IP Office supports IPv6 addresses in the following formats:

    • Full address: For example, 2001:0000:040F:0000:0000:0000:805B:001B.

    • Replace one series of :0000: parts with ::. For example, 2001:0000:040F::805B:001B.

    • Replace any individual :0000: parts with :0:. For example, 2001:0:040F::805B:001B.

    • Remove leading 0 zeros after any : colon. For example, 2001:0:40F::805B:1B.

Gateway

Display = Blank

Displays the default gateway settings for routing. If not using DHCP, you can edit the field to change the setting.

Stateless Address Auto-configuration (SLAAC)

Default = Disabled

If enabled:

• The IP Office uses SLAAC (RFC4862) to set an IPv6 unicast address for the LAN, and to obtain details of the network IPv6 routers.

• IP Office Manager disables all other settings on the tab.

• Avaya assumes that dynamically addressed devices on the LAN use SLAAC for their IPv6 addresses.

Number of DHCP IP Addresses

Default = 24. Range = 1 to 500.

This defines the number of sequential IP addresses available for DHCP clients.

DHCP Mode

Default = DHCP Client.

Advanced

Default = Disabled.

When functioning as a DHCP server, you can configure the IP Office with multiple address pools from which it can issue IPv6 addresses.

• When enabled, IP Office Web Manager displays the DHCP Pools (IPv6) settings below.

Apply to Avaya IP Phones Only

Default = Off.

When enabled, the IP Office only responds to DHCP requests from Avaya IP phones. Other devices must use static addresses or obtain their address from another DHCP server.

• In addition, Avaya IP phones will complete DHCP only with a DHCP server configured to support the same Site Specific Option Number (SSON) as set on the phone. For IP Office, the SSON numbers it supports are set on the System > LAN1 > VoIP and System > LAN2 > VoIP sub-tabs.

• After changing this setting, you must reboot DHCP client devices to force IP addresses updates.

DNS Server (IPv6)

Default = :: (Do not use)

The IPv6 address of the DNS server. If the IP Office system is acting as a DHCP server, in addition to providing clients with their IP address settings, it can also provide them with DNS if requested by the client.

• If left at the default, the IP Office system uses its own LAN address as the DNS server for DHCP clients.

• The IP Office does not support DNS priority. If the DNS response contains multiple addresses with priority, the IP Office only uses the first address.

Backup DNS Server (IPv6)

Default = :: (Do not use)

The alternate IPv6 DNS server address clients can use if the server address above does not respond.

DHCP Pool

The first pool matches the IP Address and Number of DHCP IP Addresses on the LAN Setting (IPv6) sub-tab. When adding or editing pools, the options are: