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Separate access control from IPv4 and IPv6 addresses can be set.
• If the same address is set, the address set higher in the list will be applied.
IPv4 Host Access Restrictions
Specify the hosts from which IPv4 access is permitted and prohibited.
[Apply Host Access Restrictions]
Select whether to apply IPv4 host access restrictions.
[Default Policy]
Select whether to allow or prohibit access from IPv4 addresses that have not been specified in [Network Address / Subnet].
[Network Address / Subnet]
Enter IPv4 network addresses into the list and select [Yes] or [No] for access for each address.
Able to specify the subnet to set access restrictions by network or host.
If set to [No], access to all ports is prohibited.
IPv6 Host Access Restrictions
Specify the hosts from which IPv6 access is permitted and prohibited.
[Apply Host Access Restrictions]
Select whether to apply IPv6 host access restrictions.
[Default Policy]
Select whether to allow or prohibit 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.
Able to specify the prefix length to set access restriction by network or host.
If set to [No], access to all ports is prohibited.
[Security] > [Host Access Restrictions]
• To prohibit access via a proxy server in HTTP connection, a proxy server address must be set.
• If host access restriction is set mistakenly, access to the Settings pages themselves may be prohibited, in which case restoring the
factory default settings will become the only means of recovery.
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