Canon VB-R11 Manual
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IPv6 Host Access Restrictions
Specify the hosts from which IPv6 access is permitted and restricted.
[Apply Host Access Restrictions]
Select whether to use IPv6 host access restrictions.
[Default Policy]
Select whether to allow or block access from IPv6 addresses that have not been specified in [Prefix / Prefix Length].
[Prefix / Prefix Length]
Enter IPv6 addresses (prefixes) into the list and select [Yes] or [No] for access for each address.
You can specify the prefix length to set access restriction by network or host.
If set to [No], access to all ports is blocked.