Chapter 1. IBM Flex System FC3171 8 Gb SAN Switch - QLogic

IPv4 and IPv6 addressing
The IP configuration identifies the switch on the Ethernet network, determines
which network discovery method to use, and enables/disables the IPv4 and IPv6
network addressing.
The 9.0 firmware supports the IPv4 and IPv6 address families. An IPv4 address is 32
bits, and consists of four blocks of decimal numbers, with each block separated by a
period. Each block can have up to three numbers. The single zero character
displayed in a block represents all zeroes for that block. An example of an IPv4
address is 255.255.255.0. All four blocks contain numbers. Table 12 describes the
IPv4 and IPv6 configuration parameters.
An IPv6 address allows for a much wider range of IP addresses assigned to a host
than an IPv4 address. An IPv6 address is 128 bits, and consists of eight blocks of
hexadecimal numbers, with each block separated by a colon. The maximum
number of numerals in each block is four. One or more blocks with all zeroes are
represented by two colon characters. The total number of blocks always adds up to
eight. To determine how many contiguous blocks contain only zeroes, subtract the
number of populated blocks from eight. For example, the IPv6 address
2eee:49:24:7a:54:3434 is equivalent to 2eee:0000:0000:49:24:7a:54:3434. The number
of blocks containing zeroes in this example is two (8-6=2).
Notes:
Switches without IPv6 addressing enabled cannot communicate with hosts or
switches using the IPv6 addressing.
Table 12. Network Properties—IP configuration
Parameter
iPv4 Network
Description
Enable this option to permit the IPv4 addressing format to be
used anytime you are required to enter an IP address.
CAUTION:
Disabling this option will prevent you from using an IPv4 IP
address for system services.
iPv6 Network
Enable this option to permit IPv6 addressing format to be used
anytime you are required to enter an IP address.
CAUTION:
Disabling this option will prevent you from using an IPv6 IP
address for system services.
62 IBM Flex System FC3171 8 Gb SAN Switch QuickTools User’s Guide