Sony HDVF-EL30 0.7" FHD OLED Viewfinder with 3.5" Display for 4K/HD Cameras - Manual (Page 56)

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[Access limit]
Set an access limit to the camera.
[Enable]
Select the checkbox to enable the access
limit.
[Rule]
Set rules for the access limit of the camera.
[Default policy]
Select the basic policy of the limit from
[Allow] and [Deny] for the computers with
the network address that are not specified in
the [Network address/Subnet 1] to [Network
address/Subnet 10] menus below.
[Network address/Subnet 1] to [Network
address/Subnet 10]
Enter the network addresses and subnet
mask values that you want to allow or deny
access to the camera.
You can specify up to 10 network addresses
and subnet mask values.
Enter a value from 8 to 32 the subnet mask.
Select [Allow] or [Deny] from the drop-down
list on the right for each network address/
subnet mask.
Tip
The subnet mask value represents the
number of bits from the left side of the
network address.
For example, the subnet mask value for
“255.255.255.0” is 24.
If you set “192.168.0.0/24” and [Allow], you
can allow access from computers having an
IP address between “192.168.0.0” and
“192.168.0.255”.
Note
You can access the camera even from a
computer with an IP address whose access
right is set to [Deny], if you enter the user
name and password set for the
Administrator in the User tab of the Security
menu in the authentication screen.
[Referer check] tab
Referer check is the function that checks if the
web page which requires access to the camera is
authorized. If the web page is not authorized, the
camera denies access of the web page.
If you want to access from web pages other than
the one that the camera provides, register their
host names and port numbers in the [Exception
list].
[Referer check]
[Enable]
Select the checkbox to enable the Referer
check.
[Exception list]
Register the hosts that are not targeted for the
Referer check.
[No.]
Select the registration number for the
Exception list.
[Host name]
Enter the host name or IP address of the
computer that supplies the web page you
want to register on the Exception list.
[Port number]
Enter the port number of the computer that
supplies the web page you want to register
on the Exception list.
[Set]
Register the values of the [Host name] and
[Port number] you entered to the list of the
selected number.
[Delete]
Delete the contents of the list selected with
[No.].