Settings

Last Updated : Jul 09, 2024 |
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Configuration Settings

These settings must be edited offline. To enter offline editing, select Menu Bar Current User IconOffline Mode.
Field
Description
IP Address
Default = 192.168.42.1 or DHCP client.
This is the IP address of the Control Unit on LAN1. If the control unit is also acting as a DHCP server on the LAN, this address is the starting address for the DHCP address range.
IP Mask
Default = 255.255.255.0 or DHCP client.
This is the IP subnet mask used with the IP address.
Primary Trans. IP Address
Default = 0.0.0.0 (Disabled)
This setting is only available on control units that support a LAN2. Any incoming IP packets without a service or session are translated to this address if set.
RIP Mode
Default = None.
Routing Information Protocol (RIP) is a method by which network routers can exchange information about device locations and routes. Routes learnt using RIP are known as 'dynamic routes'. The system also supports 'static routes' though its IP Route records. For Server Edition systems this setting is only available on Expansion System (V2) systems. The options are:
  • None: The LAN does not listen to or send RIP messages
  • Listen Only (Passive): Listen to RIP-1 and RIP-2 messages in order to learn RIP routes on the network.
  • RIP1: Listen to RIP-1 and RIP-2 messages and send RIP-1 responses as a sub-network broadcast.
  • RIP2 Broadcast (RIP1 Compatibility): Listen to RIP-1 and RIP-2 messages and send RIP-2 responses as a sub-network broadcast.
  • RIP2 Multicast: Listen to RIP-1 and RIP-2 messages and send RIP-2 responses to the RIP-2 multicast address.
Enable NAT
Default = Off
This setting controls whether NAT should be used for IP traffic from LAN1 to LAN2. This setting should not be used on the same LAN interface as a connected WAN3 expansion module.
Number of DHCP IP Addresses
Default = 200 or DHCP client. Range = 1 to 999.
This defines the number of sequential IP addresses available for DHCP clients.
DHCP Mode
Default = DHCP Client.
This controls the control unit's DHCP mode for the LAN. When doing DHCP:
  • LAN devices are allocated addresses from the bottom of the available address range upwards.
  • Dial In users are allocated addresses from the top of the available range downwards.
  • If the control unit is acting as a DHCP server on LAN1 and LAN2, Dial in users are allocated their address from the LAN1 pool of addresses first.
The options are:
  • Server: When this option is selected, the system will act as a DHCP Server on this LAN, allocating address to other devices on the network and to PPP Dial in users.
  • Disabled When this option is selected, the system will not use DHCP. It will not act as a DHCP server and it will not request an IP address from a DHCP server on this LAN.
  • Dial In When this option is selected, the system will allocate DHCP addresses to PPP Dial In users only. On systems using DHCP pools, only addresses from a pool on the same subnet as the system's own LAN address will be used.
  • Client When this option is selected, the system will request its IP Address and IP Mask from a DHCP server on the LAN.
    Note:
    Do not use this option with a limited time lease line.
  • Advanced: The system can be configured with a number of DHCP Pools from which it can issue IP addresses.

DHCP Pools

DHCP pools allow the configuration of multiple pools of IPv4 addresses that the IP Office can allocate when configured as a DHCP server.
  • On an IP500 V2 system, you can configure up to 8 pools.
  • On Linux-based IP Office systems, you can configure up to 64 pools.
  • The IP Office uses the IP Address, IP Mask and Number of DHCP IP Addresses settings set on the LAN Settings tab for the first pool.
When these actions are performed:
  • For E129 and B179 SIP phone models, the IP Office triggers a reboot of the phones to renew their IP address lease and apply the new address settings.
  • For the remaining DHCP clients, you must manually reboot the devices to force an IP addresses lease renewal. Otherwise, the devices continue to use the allocated IP addresses until the IP addresses lease time out expires. IP address lease time out is set to three days.
You can edit these settings in offline mode only. To enter offline mode, select Menu Bar Current User IconOffline Mode.
Field
Description
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 SystemLAN1VoIP and SystemLAN2VoIP sub-tabs.
  • After changing this setting, you must reboot DHCP client devices to force IP addresses updates.
DHCP Pool
When adding or editing pools, the options are:
Setting
Description
Start Address
Default = Blank
Sets the first IP address in the pool.
Subnet Mask
Default = 255.255.255.0
Sets the subnet mask for addresses issued from the pool.
Default Router
Default = 0.0.0.0
The default router address to include in the DHCP response.
  • For pools issuing IP addresses on the same subnet as the IP Office LAN, entering 0.0.0.0 instructs the IP Office to issue the default router as being the Destination of the IP Route entry that matches the IP address and subnet mask.
  • For pools issuing addresses for a different subnet from the IP Office LAN, you must set the default router to the correct value for devices on that subnet.
Pool Size
Default = 0
Set the number of client IP addresses available in the pool.
The first pool matches the IP Address, IP Mask and Number of DHCP IP Addresses on the LAN Settings sub-tab.
Related links
LAN1