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Pv6 Connection Notes and Limitations
The following notes and limitations apply to IPv6 connections.
• In a multi-prefix environment (environment that has multiple IPv6 global addresses),
communication from the printer to an external network may fail.
• In a multi-prefix environment (environment that has multiple IPv6 global addresses),
communication is supported by an address that is not registered.
• Non-operational IPv6 addresses may be set automatically for IPv6 addresses (IPv6
automatically set addresses, IPv6 DNS server address). A non-operational IPv6 address is a site
local address (fec0::) or an address in the document creation address space (2001:db8::/32).
• IPv4 DNS information may be used when communication is performed with a device that is
assigned an FQDN while the IP mode is dual stack and DNS information is configured for both
IPv4 and IPv6.
• The address displayed as the printer's IP address may change. For example, neither the IPv4
address nor the IPv6 address is displayed and the IPv6 address contents change.
• Secure watermark does not operate correctly when printing over an IPv6 network. Run under
an IPv4 environment.
• Synchronization with a time server is not supported in an IPv6 environment. In an IPv4
environment, specify the address to the time server directly.
• WINS does not support communication on an IPv6 network.
• NetWare does not support communication on an IPv6 network. Run using IPv4.
• The following restrictions apply to the printer URL specification method when using a self-
signed certificate for SSL communication.
• Specifying the URL with FQDN (IPv4 and IPv6)
Before creating the self-signed certificate, you need to specify the device host name and
domain name correctly.
Example: When the FQDN is csw.ipv6.domain.local, "csw" is the host name and
"ipv6.domain.local" is the domain name.
• Specifying the URL with an IPv4 address
Import of a self-signed certificate is not required in the IPv4 mode or dual mode.
• Specifying the URL with an IPv6 address
Secure IPP (IPP-S) communication is not supported.
• The following functions do not support IPv6. Run using IPv4. IPv6 does not support the
following protocols:
• Netware IP
• UPnP Discovery
• In the cases below, the user may not be able to cancel or check the status (lpq) of print jobs
requested using LPD when the address of a single machine cannot be determined.
• When IPv4 and IPv6 are in operation simultaneously on the same host
• When multiple IPv6 addresses are in operation simultaneously on the same host
• The IPv6 address may not be entered correctly in the job log. Run using IPv4.
• When performing a search using SMB will pass through a router, enter the address directly.
Response to a multicast is limited to multicasts within the local link (FF02::1) only.
• In an IPv6 network environment that does not have a DNS server, authentication fails when
the computer name is specified in the SMB authentication SMB server setting. Directly specify
the IPv6 address for the computer name of the authentication server computer name.
• With DocuShare or some other external access service, operation is improper when an IPv6
address is specified as the connection destination URL. In the IPv6 environment, enable the
DNS server and specify the destination URL using an FQDN.
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A Appendix
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