3Com NBX 100 Administrator's Manual - page 220
220
C
HAPTER
3: D
EVICE
C
ONFIGURATION
Setting Up a Digital
Line Card at a
Remote Location
Each 3C10116D T1 Digital Line Card and 3C10165D E1 Digital Line Card
can function as a standalone unit and communicate with the NBX
Network Call Processor over a routed network.
To function as a remote card, the card must have the normal IP settings
(IP address, default gateway, and subnet mask), and one extra setting, the
IP address of the NBX Network Call Processor.
The 3C10116D and 3C10165D Digital Line Cards can use static IP
configuration or they can get their IP configuration from a DHCP server.
However, they do not support DHCP option 184 to get the Network Call
Processor IP address, so you must perform some manual configuration of
the card before you install it in its remote location.
To install a card on a remote network, you must install the card on the
same subnet as its Network Call Processor and use the NBX NetSet utility
to enable Auto Discovery and to perform some manual configuration.
Then you can move the card to its remote location. Auto Discovery
downloads the Network Call Processor IP address to the card. The card
stores that information in its non-volatile memory.
Configuration Notes
■
3C10165D E1 Digital Line Cards and 3C10116D T1 Digital Line Cards
do not support the NBX IP On-the Fly feature. If your system uses IP
On-the-Fly, you must assign a static IP address to the card or use DHCP
to assign an IP address to the card, even if the card will be installed on
the same subnet as the NCP.
■
3C10165D E1 Digital Line Cards and 3C10116D T1 Digital Line Cards
do not support DHCP option 184. Before you install a 3C10165D E1
or 3C10116D T1 card at a site that is remote from the system’s NCP,
you must first initialize the card as described in this section.
■
3C10165D E1 Digital Line Cards and 3C10116D T1 Digital Line Cards
do not support DHCP lease times of less than 20 minutes.