Basics of communication with Industrial Ethernet
1.3 Technologies of Industrial Ethernet
Industrial Ethernet
30 System Manual, 09/2019, C79000-G8976-C242-10
You have entered the following: 255.255.255.0 for the subnet mask; 141.30.0.5 for the IP
address and 141.30.128.0 for the gateway address. Only the fourth decimal number of the IP
address and gateway address may be different. In the example, however, the 3rd position is
different.
You must, therefore, change one of the following in the example:
The subnet mask to: 255.255.0.0 or
the IP address to 141.30.128.5 or
the gateway address to: 141.30.0.0
1.3.2.2 Structure of an IPv6 address
IPv6 address format - notation
IPv6 addresses consist of 8 fields each with four-character hexadecimal numbers (128 bits in
total). The fields are separated by a colon.
Example:
fd00:0000:0000:ffff:02d1:7d01:0000:8f21
Rules / simplifications:
● If one or more fields have the value 0, a shortened notation is possible.
The address fd00:0000:0000:ffff:02d1:7d01:0000:8f21 can also be shortened and written
as follows:
fd00::ffff:02d1:7d01:0000:8f21
To ensure uniqueness, this shortened form can only be used once within the entire
address.
● Leading zeros within a field can be omitted.
The address fd00:0000:0000:ffff:02d1:7d01:0000:8f21 can also be shortened and written
as follows:
fd00::ffff:2d1:7d01:0000:8f21
● Decimal notation with periods
The last 2 fields or 4 bytes can be written in the normal decimal notation with periods.
Example: The IPv6 address fd00::ffff.125.1.0.1 is equivalent to fd00::ffff:7d01:1
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