User's Manual

Version 3.03 SPEEDLAN 9000 Series Installation and Operation User Guide
3-4 General Functions of the Configurator
Note: The crossover cable actually crosses the transmit and receive pairs of wires so
that direct communications can take place between devices. Use a crossover cable
anytime you need to interconnect two computers or two devices in the same location
when a hub or a switch is either unavailable or not practical.
• If you select option # 2, connect a straight-through cable from both the client
PC and the junction box to the hub or a switch.
Figure 3-3: Using two straight-through RJ-45 Ethernet cables
Upon power up, a SPEEDLAN 9000 router that is not configured attempts to obtain an
IP address for its Ethernet LAN interface from a DHCP server. This is done by
broadcasting a "DHCPDISCOVER" message on that interface. If a suitably configured
and reachable DHCP server replies within 30 seconds, the SPEEDLAN 9000 will use
the IP address, netmask, (etc.) that the DHCP server provides. Otherwise, the
unconfigured SPEEDLAN 9000 will adopt a private network IP address 192.168.69.1
and a /24 netmask (255.255.255.0).
If a DHCP server is not used, it is recommended that the SPEEDLAN 9000 router and
the client PC be on the same subnet. Otherwise, the ability to configure intervening
routers may be required.
To ra d io
To L A N
Client PC
Hub
Router