E: Alternative Ways to Assign an IP Address
UDS2100 Device Server User Guide
85
AutoIP can be disabled by setting the unit’s IP address to 0.0.1.0. This setting
enables DHCP but disables AutoIP.
BOOTP
Similar to DHCP, but for smaller networks. Automatically assigns the IP address
for a specific duration of time.
ARP and Telnet
If the unit has no IP address, you can use Address Resolution Protocol (ARP)
method from UNIX and Windows-based systems to assign a temporary IP
address.
To assign a temporary IP address:
1. On a UNIX or Windows-based host, create an entry in the host's ARP
table using the intended IP address and the hardware address of the unit
(on the product label on the bottom of the unit).
arp -s 191.12.3.77 00:20:4a:xx:xx:xx (
Unix)
arp -s 191.12.3.77 00-20-4a-xx-xx-xx (
Windows)
Note:
For the ARP command to work on Windows 95, the ARP
table on the PC must have at least one IP address defined other
than its own.
2. If you are using Windows 95, type
ARP -A
at the DOS command prompt
to verify that there is at least one entry in the ARP table. If the local
machine is the only entry, ping another IP address on your network to
build a new entry in the ARP table; the IP address must be a host other
than the machine on which you are working. Once there is at least one
additional entry in the ARP table, use the following command to ARP an
IP address to the unit:
arp -s 191.12.3.77 00-20-4a-xx-xx-xx
3. Open a Telnet connection to port 1. The connection fails quickly, but the
unit temporarily changes its IP address to the one designated in this step.
telnet 191.12.3.77 1
4. Open a Telnet connection to port 9999, and press
Enter
within
five
seconds
to go into Setup Mode. If you wait longer than five seconds, the
unit reboots.
telnet 191.12.3.77 9999
Note:
The IP address you just set is temporary and reverts to the default
value when the unit’s power is reset, unless you configure the unit with a
static IP address and store the changes permanently.
