Black Box TS560A, User Manual

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LAN SOLUTION NETWORK TESTER
to the correct state. The check of the router’s address is
done whenever MyIP, the router IP, or the Netmask are
edited.
The Netmask is a special set of numbers that are similar
to an IP address. It must be a string of 1s, from the
highest order bit down, defining the bits that must
match between MyIP and any devices it tries to access on
the LAN segment. If the IP address bits match, the
device is on the LAN segment and can be addressed
directly. If they do not match, the tester must redirect its
IP packet to the router for forwarding. Editing the
Netmask is limited to setting valid bit combinations that
allow for LAN segments with 5 to 253 possible devices.
5.3 Last DHCP
This sub-menu allows you to view the results of the most
recent DHCP negotiation between the LAN Solution
Network Tester and a DHCP server. The values
displayed cannot be modified, only viewed to determine
the configuration of the LAN segment under test.
Pressing the SEL button drops the tester into the DHCP
display screens. The up/down arrow or SEL buttons
scroll through the screens in this sub-menu. To view the
information obtained for each item in the sub-menu,
press the SEL button.