15 Appendix
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15
Notes and Restrictions for IPv6 Connection
The following are notes and restrictions for IPv6 connection.
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In a multi-prefix environment (where multiple IPv6 global addresses are used), data
transmission from the machine to a device installed on another network may fail.
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In a multi-prefix environment (where multiple IPv6 global addresses are used), an
address that is not assigned to the machine may be used for connection.
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The machine may be assigned an unavailable address, such as site local addresses
(fec0::) and the documentation prefix (2001:db8::/32), as an autoconfigured IPv6
address or as an IPv6 DNS server address.
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If the machine is under all of the following conditions, the machine may use the DNS
information for IPv4, rather than that for IPv6: (1) the machine is in Dual Stack mode,
(2) the DNS information for both IPv4 and IPv6 are configured, (3) the machine is to
be communicate with a device that is specified using the domain name, and (4) the
machine has just been turned on.
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The machine may display an incorrect machine address.
Example:
(1) Either the IPv4 or IPv6 address is not displayed in Dual Stack mode.
(2) A different IPv6 address is displayed.
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When a document is printed via an IPv6 network, the Secure Watermark feature is
not available.
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A time synchronization server cannot be specified in IPv6 format. Use the IPv4
format to specify a time synchronization server.
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The following operating systems support IPv6 printing.
- Windows Vista
-Linux distributions with CUPS (Common Unix Printing System) that supports IPv6
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WINS does not support IPv6 communication.
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NetWare does not support IPv6 communication. Use IPv4 for Netware.
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When a self-signed certificate is used for SSL communication, note the following
restrictions.
(1) When the machine is specified using the domain name (for IPv4 or IPv6):
Set the host name and domain name for the machine before creating a self-
signed certificate.
Example:
When the domain name is "csw.ipv6.domain.local":
Host name: csw
Domain name: ipv6.domain.local
(2) When the machine is specified using the IPv4 address:
The self-signed certificate that is created in IPv4 or Dual-Stack mode needs to
be imported.
(3) When the machine is specified using the IPv6 address:
Secure IPP (IPP-S) communication is not available.
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Bonjour does not support IPv6 communication. Use IPv4 for Bonjour.
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When IPv6 is enabled and IPv4 is disabled on the machine, the Browse function of
the Scan to PC (SMB) service is not available.
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When the Scan to PC (FTP) service is used, file names must be ASCII characters.
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In the following cases, the lpq command (for status check) and the lprm command
(for canceling) may not be available for LPD print jobs.