Canon VB-H41 - Manual (Page 69)

[Access Control] Setting User Access Privileges
69
5
S
et
ting P
age
IPv6 Host Access Restrictions
(1) [Apply Host Access Restrictions]
Set IPv6 host access restrictions to [Disable] or
[Enable].
(2) [Default Policy]
If IPv6 host access restrictions are applied, select
[Authorize Access] or [Prohibit Access] for the default
policy.
(3) [Prefix / Prefix Length]
Create a list of permitted hosts and restricted hosts
and set IPv6 address access for each host to [Yes] or
[No].
You can specify the prefix length and set access
restriction by network or host.
If access is prohibited, access to all ports is
restricted.