11
3.5 Default IP Address
The iServer is shipped with a default IP address of
192.168.1.200
and Subnet Mask of
255.255.255.0
. If you are going to use a Web browser or Telnet program to access the
iServer using its default IP address, make sure that the PC from which you’re
establishing the connection has an IP address that is in the same range as the iServer’s
IP address (
192.168.1.x
, where
x
can be any number from 1 to 254.
Your PC’s IP address cannot be the same as the iServer’s IP address.
You also need to make sure that your PC’s Subnet Mask is
255.255.255.0
. This is a
good way to access the iServer over the network and make any configuration changes
needed. If
192.168.1.200
is already in use on your network, use an Ethernet crossover
cable between your computer and the iServer to change the IP address or any other
settings within the iServer.
3.6 Port Number
All TCP connections are defined by the IP address and a port number. A port number is
an internal address that provides a TCP/IP interface between an application software on
a computer and a device on the network or between two devices on the network.
There are three default TCP socket port numbers assigned to the iServer:
1. Port
1000
when using HTTPget program (see
Section 4.5
).
2. Port
2000
when trying to access the sensor (probe) connected to the port of the
iServer to receive data.
3. Port
2002
when trying to access the iServer itself for Power Recycling the iServer
remotely. This can be done using Windows standard Telnet application.
Power recycling the iServer can also be done through the iServer’s Web Server (see
Section 4.2
).
Telnet stands for Telecommunications Network, it is a protocol that provides a way for
users (or clients) to connect to computers (or servers) on a network, whether in the next
building or across the world.
Example: C:\>Telnet 192.168.1.200 2002
You will then get the following screen.
Figure 3.3 Telnet Login into the iServer
You can open a Telnet session using other terminal emulation programs like Tera Term
Pro (downloadable from the internet), which is a free software for MS-Windows. It
supports VT100 emulation, Telnet connection and serial com port connections.
Firmware Version x.xx
Admin. Password:00000000
Admin. Login Successful
reset
The unit will reset in 5 seconds
_
The default
Admin. Password
Type "reset"
to reboot
the server
C:\
Telnet 192.168.1.200