NEC SV8500, Manual

Page: 3234 / 3438

VOL.3-747
CHAPTER 4 CONFIGURATION SETUP
6.2.22 Spare/Backup IP
This section explains data assignment of Spare/Backup IP.
Even if DT700 Series fails to obtain an IP address from DHCP server, the DT700 Series can connect to
the Telephony Server using Spare/Backup IP address.
Either of the following will be used as a substitute IP address depending on a substitute IP address mode
assigned.
• Spare IP: IP address set by the Configuration Setting
• Backup IP: IP address obtained from DHCP last time
Spare IP
If you set the following information by the Configuration Setting when substitute IP address mode is
Spare IP, DT700 Series can use the following information as the substitute information while DHCP is
out of service.
• IP Address
• Subnet Mask
• Default Gateway
• DNS Server Address
• 2nd - 4th Server Address
• 2nd - 4th Server Port
Note:
It is mandatory to set IP address and Subnet Mask.
Operation with Spare IP
[1] The power of DT700 Series is OFF. A substitute IP address is set by Configuration Menu in advance.
[2] The power of DT700 Series is turned ON. DT700 Series fails to obtain an IP address because of commu-
nication failure.
[3] DT700 Series starts operating with a substitute IP address.
DHCP Server DT700 Series
Active IP Address 䋺 -
Substitute IP Address 䋺 192.168.0.10
Power is OFF.
DHCP
DHCP Server
Power is ON.
DT700 Series
Active IP Address 䋺 -
Substitute IP Address 䋺 192.168.0.10
DHCP Server
Power is ON.
DT700 Series
Active IP Address 䋺 192.168.0.10
Substitute IP Address
䋺
192.168.0.10