Revision 1.01
WebRelay-10
TM
Users Manual
convenience but details of setting up a configuration such as this is beyond the scope of this
manual.
If WebRelay-10
TM
is used on a private network only and is NOT used over the Internet, a routable
IP address is not necessary. This may be the case when WebRelay-10
TM
is used to control (or
monitor) a device in another room or a nearby building.
If WebRelay-10
TM
will be installed on a simple, private network that does not connect to the
Internet, the default IP address may be used as long as no other device on the network uses the
same address. If multiple WebRelay-10
TM
units are installed on the same network, each unit must
have its own unique IP address. For example, WebRelay-10
TM
comes from the factory with a
default IP address of 192.168.1.2. If multiple units are used, change the IP address for each unit
(192.168.1.3, 192.168.1.4, 192.168.1.5 etc.).
2. Netmask:
This specifies the size of the local network. This must be obtained from the network
administrator. By default, the netmask is set to 255.255.255.0.
3. Broadcast:
This specifies the broadcast address. This must be obtained from the network
administrator. By default, this is set to 192.168.1.255.
4. Gateway:
This specifies the IP address of the gateway router. This must be obtained from the
network administrator. By default, this is set to 192.168.1.1.
5. TCP Port:
This specifies the TCP port used for communications with WebRelay-10
TM
. By default,
the port is set to 80 which is the standard http port. It is recommended that the port not be
changed without an understanding of TCP/IP and ports.
Changing the port can be useful for accessing multiple WebRelay-10
TM
devices which are
installed behind a gateway router on a private network that uses non-routable IP addresses
(192.168.x.x, 10.x.x.x, and 172.16.x.x through 172.31.x.x are non-routable or private IP
addresses). In this case, each WebRelay-10
TM
unit would be assigned a different port (for
example 8000, 8001, 8002, etc). The gateway router would be set up to forward all traffic
for each of the assigned ports to the IP address of the WebRelay-10
TM
unit which uses that
port. The WebRelay-10
TM
units could then be accessed from outside the private network
by entering the IP address of the gateway and the port for the desired WebRelay-10
TM
unit.
Note that whenever any port is assigned other than port 80, all communications with that
WebRelay-10
TM
device must include the port. For example, if WebRelay-10
TM
is assigned
port 8000, access to the setup page would require the following URL to be entered;
http://192.168.1.2:8000/setup.html.
Xytronix Research & Design, Inc.
page 15
