302 A AppendixIPv6 Connection Notes and LimitationsThe 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 (IPv6automatically set addresses, IPv6 DNS server address). A non-operational IPv6 addressis 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 thatis assigned an FQDN while the IP mode is dual stack and DNS information is configuredfor both IPv4 and IPv6.• The address displayed as the printer's IP address may change. For example, neither theIPv4 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. Rununder an IPv4 environment.• Synchronization with a time server is not supported in an IPv6 environment. In an IPv4environment, specify the address to the time server directly.• IPv6 printing is supported with the following operating system versions only.• Windows Vista• Linux distributions under which the Common Unit Printing System supports IPv6printing.• 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.(1) Specifying the URL with FQDN (IPv4 and IPv6)Before creating the self-signed certificate you need to specify the device host nameand 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.(2) Specifying the URL with an IPv4 addressImport of a self-signed certificate is not required in the IPv4 mode or dual mode.(3) Specifying the URL with an IPv6 addressSecure IPP (IPP-S) communication is not supported.• Bonjour does not support communication on an IPv6 network. Run using IPv4.• In the cases below, the user may not be able to cancel or check the status (lpq) of printjobs requested using LPD when the address of a single machine cannot be determined.1. When IPv4 and IPv6 are in operation simultaneously on the same host2. 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 addresseeaddress directly. Response to a multicast is limited to multicasts within the local link(FF02::1) only.
