Figure 6. Udp Mode - Wiznet WIZ1000-EU User Manual

<Mixed mode>
In this mode, WIZ1000 normally operates as TCP Server and waits for the connection request
from the peer. However, if WIZ1000 receives data from the serial device before connection is
established, it changes to the client mode and sends the data to the server IP. Therefore, at
the mixed mode, the server mode is operated prior to the client mode.
As like TCP Server mode, the Mixed mode is useful for the case that the monitoring center
tries to connect to the serial device (in which WIZ1000 is used) to check device status. In
addition to this, if any emergency occurs in the serial device, the module will change to
Client mode to establish the connection to the server and deliver the emergency status of the
device.
ⓚ
UDP

Figure 6. UDP mode

As we know, UDP is not a connection oriented protocol. But the communication port should
also be defined well. If the UDP mode is selected, the data from serial interface can be
defined where to delivery via the "Sever IP Address" and "Port", and the WIZ1000 can also be
defined where to receive Ethernet data from via the "Remote Peer IP Address" definition. If
the data destination and source are the same, the two IP address will also be the same.
Please note the destination and source are using the same port.
ⓛ
Use DNS : If DNS function is needed, check this option and input the domain name of DNS
server. DNS(Domain Name System) is the database system having information about IP address
and corresponding domain name. When connecting to domain name, you can use DNS function
of WIZ1000. Input IP address of DNS server provided by ISP in DNS Server IP, and domain name
in the Server (Domain)
If server has dynamic IP address, but domain name, if you use DNS function, you do not need
to configure server IP address whenever it's changed.
If module does not have valid network information, Direct IP search is not available.
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