IP Office Basic Edition - Quick Mode Installation
Page 75
15-601042 Issue 24i (20 December 2011)
IP Office 8.0
IP500 V2 Installation: Grounding
4.9 Network Connection
The section below details how a new IP Office system determines what IP address it should use. Note that this only applies
for a new system loading IP Office Release 7.0 or higher.
IP Address and DHCP Mode Resolution
When a defaulted or new IP Office control unit is switched on, it requests IP address information from a DHCP Server on
the network. This operation will occur whether the LAN cable is plugged in or not. The process below is done separately for
both the LAN port (LAN1 in the configuration) and the WAN port (LAN2 in the configuration) on the back of the IP Office
control unit.
·
The IP Office makes a DHCP request for what IP address information it should use.
·
If a DHCP server responds within approximately 10 seconds, the control unit defaults to being a DHCP client and
uses the IP address information supplied by the DHCP server.
·
If no DHCP Server responds, the control unit still defaults to being the DHCP client but assumes the following
default addresses:
·
LAN1: 192.168.42.1/255.255.255.0.
·
LAN2: 192.168.43.1/255.255.255.0.
·
Note that the IP Office does not check that these addresses are valid and or available on the network.
·
!
Once an IP500 V2 control unit has obtained IP address and DHCP mode settings, it will retain those settings even
if rebooted without a configuration file present on the System SD card. To fully remove the existing IP address and
DHCP mode setting the IP Office must be defaulted using IP Office Manager.
PC Connection
Depending on the conditions that applied when the IP Office control unit was first started, a PC can be connected as
follows:
·
If the IP Office is not connected to a network:
Connect the PC directly to the IP Office. It must be set to an address valid on the same network as the IP Office
defaults above.
·
If the IP Office is connected to a network with no DHCP server:
Connect the PC directly to the IP Office. It must be set to an address valid on the same network as the IP Office
defaults above.
·
If the IP Office is connected to a network with a DHCP server:
Connect the PC to the network. It must be set to be a DHCP client or to an address that is valid for the network.
