Polycom MGC-100 Getting Started Manual page 57

Table 3-7: Settings Dialog Box Options
Field
Network
DHCP-Obtain IP
Address
Automatically
Subnet Mask
Default Router
Chapter 3 - Initial System Configuration
Description
Select this check box to use a DHCP server for
automatic assignment and tracking of IP addresses
to the conference devices. Selecting this option
retrieves the IP addresses necessary for registration
with the DNS and H.323 gatekeeper, and for
automatic configuration of the SIP server. When the
DHCP server is used, the IP address of the card
appears as 0.0.0.0.
Although the IP address allocated to the cards rarely
changes, you may prefer not to select this check box
if you need to:
•
Establish a static IP address, for example, when
working with a firewall and you need to translate
an internal IP address, that must be static, with
an external one.
When dialing in directly to the card, using the card's
IP address.
Enter the subnet mask of the MCU's IP card. If the
DHCP is used, the subnet mask is automatically
retrieved from the DHCP server and cannot be
modified.
Enter the IP address of the default router. If the
DHCP is used, the IP address of the default router is
automatically retrieved from the DHCP server and
cannot be modified.
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