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Protocol Settings 5-9
5
Using a TCP/IP Network
You can register up to eight IPv4 addresses or IPv4 address ranges.
The IPv4 address '0.0.0.0' cannot be specified.
The value of [ First Address] for [ Multiple Addresses ] should be smaller than or equal to that of [ Last Address ].
If <Apply Settings> is set to 'Off' for both [Permit IPv4 Address] and [Reject IPv4 Address], all IPv4 addresses
are permitted.
If <Apply Settings> is set to 'Off' for [Permit IPv4 Address] and <Apply Settings> is set to 'On' for [Reject IPv4
Address], IPv4 addresses that are beyond the specified range of [Reject IPv4 Address] are permitted.
If <Apply Settings> is set to 'On' for [Permit IPv4 Address] and <Apply Settings> is set to 'Off' for [Reject IPv4
Address], IPv4 addresses that are beyond the specified range of [Permit IPv4 Address] are not permitted.
If <Apply Settings> for both [Permit IPv4 Address] and [Reject IPv4 Address] is set to 'On', IPv4 addresses that
are beyond the ranges of both [Permit IPv4 Address] and [Reject IPv4 Address] are not permitted.
If <Apply Settings> for both [Permit IPv4 Address] and [Reject IPv4 Address] is set to 'On', IPv4 addresses that
are within the ranges of both [Permit IPv4 Address] and [Reject IPv4 Address] are not permitted.
If the usage of a protocol or print application is not permitted on your device, it cannot be used even after
its IPv4 address is permitted on the machine; on your device, configure the settings to permit the protocol or
print application.
This machine logs attempts to gain access from IPv4 addresses that it has been set to reject. For instructions
on how to refer to the access log, see e-Manual > Network.
TCP/IPv6 Settings
This section describes the procedure for setting TCP/IPv6 using the control panel. After specifying
the settings for TCP/IPv6, follow the procedure in “Settings Common to TCP/IPv4 and TCP/IPv6,” on p.
5-17 to specify the required settings, and the procedure in “Confirming TCP/IPv6 Settings,” on p. 5-25
to check whether the network settings are correct. If the settings for TCP/IPv4 are already specified
and you have finished specifying the settings common to TCP/IPv4 and TCP/IPv6, only check the
network settings after completing this procedure. If you want to use IPv4 communications at the
same time, follow the procedure in “TCP/IPv4 Settings,” on p. 5-3 to specify the required settings, and
the procedure in “Confirming TCP/IPv4 Settings,” on p. 5-24 to check the settings.
The machine can use up to seven of the following IPv6 addresses. With IPv6 communication, multiple
IPv6 addresses can be used at the same time.
If the IPv6 address assigned to the machine is the same as another node, you may not be able to perform IPv6
communication, even though an IPv6 address is displayed on the screen.
Link local address (1)
An address that is only valid within the same link. A link local address is automatically set using a specific prefix
(fe80::) and an interface identifier generated from the MAC address of the machine. When the machine is using
the functions of IPv6, one link local address is always registered.
Manual address (0 or 1)
A fixed address that is set from the control panel.
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