User`s guide

Chapter 3 Performing Network Tests
Performing Ping Tests
32 LanScaperPRO Network Tester User’s Guide
starts sending out ping packets to the selected target,
the router, and (in DHCP ON mode) the DNS server.
The pings continue for 15 minutes after the last key
press, after which the LanScaperPRO automatically
turns off.
13 To view information about a specific device once the
test is complete, do the following:
a Highlight a device acronym using the left and
right arrow keys.
b Press the SEL key. One of two detailed status
messages is displayed.
c Press the SEL key again to advance to the next
screen and view the second status message.
(The screen will auto-advance in 10 seconds.)
14 Press the QUIT key once to exit the active Ping Test
and again to move back to the Network Test Menu.
Understanding
DHCP ON/
DHCP OFF
modes
The LanScaperPRO ping function operates in two modes:
DHCP ON and DHCP OFF (Manual Mode). DHCP is a
protocol negotiation used to automatically configure the IP
parameters of the LanScaperPRO on a specific LAN
segment. (For more information, see the entry for DHCP
under “Internet Protocol Definitions” on page 80.)
With DHCP on, the next time the ping test is started, the
tester will request IP parameters it needs for LAN commu-
nication from a DHCP server on that LAN segment. If a
response from a server is received, the tester will
configure itself with the acquired parameters and start the
ping. (Note that the only IP parameter not received from
LanScaperPRO_User_Guide.book Page 32 Friday, January 25, 2008 1:14 PM