iPECS UCP100 - Page 56

iPECS eMG80/100& eMG800 & UCP & vUCP
Administration and Programming Manual Issue 2.5
42
The System IP Plan sets several IP addresses, including the MPB (UCP) IP address required for external
VoIP calls, the IP address for the router, and the system‘s internal private IP address Plan.
Note that the LAN and Router addresses must be routable IP addresses for access to an external VoIP
network, remote access by an iPECS Phone, or remote Web access.
When used, the LAN port of the VVMU(eMG80), VOIB(eMG100/800), or VOIM (Voice over IP device unit)
must also have a routable IP address for access to/from an external VoIP network and a remote iPECS
device.
When “Automatic IP Assign” is enabled, the system will assign IP addresses to each iPECS IP terminal and
gateway Modules, including any VOIM using the System IP address range defined. These addresses are used
for communications between the system and other VOIMs and terminals.
When “Automatic IP Assign” is enabled, the system will assign IP addresses to each iPECS IP terminal and
board (Gateway Modules), including any VVMU, VOIB, or VOIM using the System IP address range defined.
These addresses are used to communicate between the system and other VVMU (VOIB, VOIM) terminals.
The system may be connected to a LAN that is segmented by two separate private IP address schemes. This
segmenting technique is often used to separate voice and data devices.
However, with this segmenting technique, the system will normally treat the segmented devices such as IP
softphones as remote devices, using valuable WAN bandwidth. Assigning the “Second Sys IP address” with a
valid IP address from the second segment permits the system to communicate directly with the devices over
the LAN.
iPECS can be installed behind a NAPT server if the NAPT server provides fixed address translation and port
forwarding to the system. In this case, the system will employ the “Firewall IP address” as the fixed IP address
for communication with remote devices. This address must be assigned as the “MPB (UCP)” address in the
remote device.
Table 4.4.1.4-1 SYSTEM IP ADDRESS PLAN
ATTRIBUTE
DESCRIPTION
DEFAULT
MPB (UCP) DHCP
Control the DHCP client function for MPB in the KSU or UCP.
OFF
MPB (UCP) IP Address
Public IP Address of the KSU (UCP) LAN port that is required
for remote user and external VoIP network access. IPv4
format.
10.10.10.2
MPB (UCP) Subnet Mask
Define the system subnet for MPB (UCP) IP addresses.
255.255.255.0
Router IP Address
Router IP Address for external network (WAN) access. It is
required for shared voice and data LAN, external VoIP, and
remote Web access.
10.10.10.1
System IP Range
It is the range for private IP addresses of Modules/Terminals.
System Subnet Mask
Define the system subnet for private IP addresses.
255.255.255.0
Automatic IP Assign
The system automatically assigns IP addresses to modules
and terminals (ON) or, when OFF, IP addresses are assigned
manually in Device IP Address Table or from the DHCP
address assigned to the device.
ON
Second System IP
Address
When devices have different address schemes on the same
LAN, enter an IP address from the second LAN for use by the
system.
0.0.0.0