3Com SuperStack 3 NBX Administrator's Manual page 331

Table 51 System Settings System-wide Dialog Box Fields
Field Purpose
Host Name An IP setting for the NBX system.
A Host name functions only if you add the name to the name
resolution system. If you do not do this, then you must enter
the IP address in the browser when you want to access the
NBX NetSet utility.
SMTP Domain The name of your SMTP domain.
Name
Required for Off-Site Notification by e-mail.
IP Address The IP address of the NBX system.
Default Gateway The IP address of the destination host for any IP packet not
addressed to a host on the local subnetwork.
Subnet Mask An IP setting that identifies the network and host portions of
an IP address on the network.
Primary DNS The IP address of the primary DNS server. You must specify at
least a primary address to use e-mail Off-Site Notification.
Secondary DNS The IP address of the secondary DNS server. If you specify two
DNS IP addresses, they must be the primary and secondary
addresses.
Tertiary DNS The IP address of the tertiary DNS server.
Network Protocol The transport mechanism for voice packets.
Ethernet only: All communications are at the Ethernet frame
layer.
Standard IP: IP communications are used for traffic between
NBX system addresses.
NOTE: Every device needs an IP address.
IP communications are optional features of the NBX system
and require separate licensing.
IP On-the-Fly: An implementation of IP communications in
which Layer 2 (Ethernet) devices are temporarily assigned a
Layer 3 (IP) address only when they need to communicate with
a Layer 3 device on a different subnetwork. The IP address is
assigned from an address pool defined by the NBX system
administrator. After the Layer 2 device returns to the idle state
the IP address is returned to the pool of available addresses for
future use.
If you have the appropriate license and select IP On-the-Fly in
the Network Protocol list, you must return to the Current
System Settings window, select IP Addresses and add the
IP addresses associated with IP-on-the-Fly. There may be
unpredictable results in other system functions if you have
Network Protocol set to IP-on-the-Fly but do not have any
IP telephones or addresses.
System Settings 331