1257 User Manual
EADS North America Defense
Computer Interfaces 4-5
Test and Services, Inc.
©
2001
subnet mask for the 1257.
•
Manual. In Manual Mode, the user assigns a static IP address,
gateway, and subnet mask to the 1257.
Using DHCP Addressing
To select the DHCP mode, proceed as follows:
1. Press the top key, which will select line 1 (top line). Rotate the
knob until the top line reads:
>-----SETTINGS-----<
2. Select line 2 (next to top line) by pressing the second key.
Rotate the knob until the display shows “Remote: TCP/IP” in
line 2 (lines 3 and 4 may differ):
-----SETTINGS-----
> Type: TCP/IP <
Option: IP_Oct_1
Status: 0
3. Press the third key, selecting line 3. Rotate the knob until line 3
reads as follows (line 4 may differ):
-----SETTINGS-----
Remote: TCP/IP
> Option: Addr_Mode<
Status: Auto_DHCP
4. If line 4 already indicates Auto_DHCP mode, then no further
action is required. Otherwise, select line 4. Rotate the knob
until the display reads:
-----SETTINGS-----
Type: TCP/IP
Option: Addr_Mode
<Update?: Auto_DHCP
Then press key 4 again to select the DHCP mode. The 1257 is
now ready for TCP/IP communications.
5. It is possible to see when the 1257 successfully negotiates an
address with a DHCP server. Normally after applying power to
a 1257 the octet fields for the IP address, gateway address,
and netmask have values of zero. After a DCHP server
assigns and address to the 1257, these fields will be non-zero.
To view the first octet of the IP address, press the third key,
selecting line 3. Rotate the knob until the display reads:
-----SETTINGS-----
Type: TCP/IP
> Option: IP_Oct_1 <
Status: 172
In the example above, the first octet would be “172”.
Continuing to scroll through the various octets under the Option
Summary of Contents for 1257
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