LAN Settings

System \| LAN1 \| LAN Settings
Control Unit	SOE , IP403 , IP406 V1 , IP406 V2 , IP412 , IP500 .
Software Level	1.0+.
Mergeable	.

•	IP Address: Default = 192.168.42.1 or DHCP client. See Default Settings. This is the IP address of the Control Unit on LAN1. If the control unit is also acting as a DHCP server on LAN1 then this address is the starting address of the DHCP address range. For a new powered up control unit the default

•	IP Mask: Default = 255.255.255.0 or DHCP client. See Default Settings. This is the IP subnet mask used with the IP address.

•

Use Port 8 as LAN2: Default = Off, Software level = 4.1+.
This option is provided for IP406 V2 control units with IP Office 4.1 or higher software only. When selected, LAN port 8 on the control unit acts as LAN2 for the IP Office control unit. Note that this setting is retained by the IP Office even if the system is defaulted. To change the setting, the value in the configuration should be changed and the configuration sent back to the system for an immediate reboot.

•	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 IP Office also supports 'static routes' though its IP Route entries.

•	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 is only available on Small Office Edition, IP412 and IP500 systems. It 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. See Default Settings, Range = 1 to 999. This defines the number of sequential IP addresses available for DHCP clients.

•

DHCP Mode: Default = See Default Settings.
This controls the control unit's DHCP mode for LAN1. 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.

•	For a new control unit or one with an erased configuration, the default mode depend on whether the IP Office detects another DHCP server when powered up. See Default Settings for details.

•	Server When this option is selected, the IP Office will act as a DHCP Server on LAN1, allocating address to other devices on the network and to PPP Dial in users.

•	Disabled When this option is selected, the IP Office 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 IP Office will allocate DHCP addresses to PPP Dial In users only. On IP500 systems using DHCP pools, only addresses from a pool on the same subnet as the IP Office's own LAN address will be used.

•	Client When this option is selected, the IP Office will request its IP Address and IP Mask from a DHCP server on the LAN.

•	Advanced: Software level = 4.2+ (IP500 only). IP500 control units with IP Office 4.2+ software can be configured with a number of DHCP pools from which the IP Office can then issue addresses. See DHCP Pools.