NETWORK - Ethernet
IP Address: The port's MAC, IPv4, and/or IPv6 network addresses.
Usage: These icons summarize information about the port:
n
(Checkmark): The user has changed the configuration, but hasn't clicked the APPLY
button at the bottom of the page yet.
n
(Management Port): This network port is configured as the management port (web
interface, SNMP, email, DNS).
n
(Up Arrow): The physical network port is enabled and functioning (does not indicate a
valid physical connection or configuration).
n
(DHCP): The network configuration is automatic via DHCP
n (Question Mark): Status unknown - usually when there are pending changes.
n
(Number "6"): Uses IPv6
n
(Letter "B"): Configured for bonding with another port in a redundant pair.
DNS Servers
The DNS Server fields display the IP addresses of Domain Name Service (DNS) servers.
The SyncServer requires a valid DNS server address to resolve domain names. If a DNS
server isn't provided, NTP associations (NTP - Config) and the SMTP Gateway
(SERVICES - Email) must be specified using an IP address. DNS messages are only com-
municated through LAN1 port. The specified DNS servers must be reachable from the LAN1
port.
n Management Port User DNS Servers: Manually enter one or more DNS Server IP
addresses here, if not supplied by DHCP.
n Management Port DHCP DNS Servers (Read Only): If LAN1 has DHCP enabled,
and DHCP is configured to supply DNS server addresses, displays the DNS server IP
addresses supplied by DHCP. These values are not user-editable.
Note: If the SMTP Gateway (which supports Password Recovery and Email Notification of
Alarms) and NTP associations are addressed using domain names, a valid DNS server
address must be supplied to the SyncServer.
Network Port Configuration
To edit the settings for a network port, click the corresponding EDIT button on the
NETWORK - Ethernet page. This opens a dialog box titled with the name of the port fol-
lowed by "Configuration".
To apply configuration changes, click APPLY buttons on both this configuration window and
later on the NETWORK - Ethernet page.
Connection Mode:
n Static: A user must configure the network port manually.
n DHCP: A DHCP server will automatically configure the network port when changes are
applied. Not available for IPv6.
n Disabled: This disables the network port.
Note: If the Connection Mode is DHCP and the lease expires or the SyncServer reboots, a
DHCP server could assign a new IP address to the SyncServer’s network port. If this occurs
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