56
Anhang
12. Appendix
Alternatives for IP address assignment
In case IP addresses cannot be assigned using DHCP or the Wutility Tool, the Web
IO offers two further options:
Assigning the IP address using the ARP command
This method can be used when the Web-IO does not yet have an IP address and the
entry is 0.0.0.0. Another prerequisite is that the Web-IO and computer are in the same
network segment.
Read the Ethernet address of the Web-IO from the label at the side of the housing:
xxx
Now use the following command line from the ARP table of the computer to enter a
static entry:
arp -s [IP address] [MAC address]
Example under Windows:
arp -s 10.40.72.15 00-C0-3-00-3F-A0
Example under SCO UNIX:
arp -s 10.40.72.15 00:C0:3D:00:3F:A0
Then start the Web browser and enter
http://<IP address>
1
In Windows environments IP addresses may only be entered without leading
zeros.
The Web-IO accepts the IP address of the first network packet sent to its Ethernet
address as its own and saves it in non-volatile memory. All other settings can now
