Canon network camera VBS31D User Manual

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Setting Page
4
General Upload
(1) [Upload] 
Select [Upload Disabled], [HTTP Upload] or [FTP 
Upload] for the upload method.
(2) [Video Format]
Select the [JPEG] or [H.264(1)] format for video you 
want to upload. 
If [H.264(1)] is selected, video is uploaded with the 
settings defined under [Video] > [H.264(1)] (p. 46).
 [H.264(2)] cannot be used.
(3) [Frame Rate] 
Enter the maximum frame rate of video to be 
uploaded. This setting can only be made when 
[JPEG] is selected for [Video Format].
(4) [Pre-event Buffer (number of frames)] / [Pre-event 
Buffer (sec)]
Enter the number of frames or seconds of video to be 
buffered before the event. The maximum amount is 
number of frames for a [JPEG] selection and number 
of seconds for an [H.264(1)] selection in [Video 
Format].
(5) [Post-event Buffer (number of frames)] / [Post-event 
Buffer (sec)]
Enter the number of frames or seconds of video to be 
buffered after the event. The maximum amount is 
number of frames for a [JPEG] selection and number of seconds for an [H.264(1)] selection in [Video 
Format].
Note
The server or network load may increase and the frame rate may 
drop, depending on the settings. If this occurs, try the following 
measures. Also check the settings including the network to the 
server. 
 Reduce the video file size:
– Set a lower value under [Video Quality] for [JPEG]/
[H.264(1)] (p. 46). 
– Set a lower value for [Video Size: Upload / Memory card] for 
[JPEG] (p. 46).
– Set a lower value for [Video Size] for [H.264(1)] (p. 46).
– Set a lower value under [Target Bit Rate (kbps)] for 
[H.264(1)] (p. 47).
 Reduce the uploading frequency: 
– Reduce the value in [Pre-event Buffer] or [Post-event Buffer] 
(p. 51). 
– If [Volume Detection Event] is enabled, disabled [ON Event 
Operation], [OFF Event Operation], or [Ongoing On Event 
Operation] (p. 56). 
[Upload] 
Setting HTTP/FTP Upload and E-mail Notification
The following can be set here. 
 General Upload
Set the upload operation to be performed and the 
video buffer.
 HTTP Upload
Set HTTP connection uploads. 
 FTP Upload
Set FTP connection uploads. 
 E-mail Notification
Set event information and video e-mail 
notifications. 
Important
 If the upload function is used, either the [Event] menu must 
be set (p. 56) or the [Event] tab in the Intelligent Function 
Setting Tool (p. 104) must be set. 
 If you are using both e-mail notification by text and video and 
video upload by HTTP/FTP, set [Video Size: Upload / Memory 
card] (p. 46) to a small size.
 HTTP upload does not support SSL/TLS. 
 If the camera is set to perform upload or e-mail notification 
continuously, not all video or e-mails may be sent depending 
on the video size and the network condition to the server. In 
this case, an event log message is displayed (p. 73). 
 If the destination for HTTP/FTP upload or e-mail notification is 
set for a Windows operating system, IPsec communication 
cannot be applied.
 When an H.264 video is uploaded, the following restrictions 
apply to [H.264(1)] of [Video] (p. 46).
- Only [Use bit rate control] can be selected for [Bit Rate 
Control].
- Only [3072] or less can be selected for [Target Bit Rate 
(kbps)].
- Only one of [0.5], [1], and [1.5] can be selected for [I 
Frame Interval (sec)].
 The maximum video buffer size capacity is approx. 5 MB. 
If a large video size is set, the Frame Rate, Pre-event Buffer 
and Post-event Buffer may not be achieved as specified. 
 If buffering cannot be achieved as specified, a message is 
written to the event log (p. 73). 
Before using a large video size, confirm that no messages 
appear in the event log. 
						

							52
– From the Intelligent Function Setting Tool [Event] tab > 
disable [ON Event Operation], [OFF Event Operation] or 
[Detected mode Operation] (p. 104). 
– If [External Device Input Event] is enabled, disable [Active 
Event Operation], [Inactive Event Operation], or [Ongoing 
Active Event Operation] (p. 57). 
– If [Timer Event] is enabled, increase the value in [Repeat 
Interval] (p. 58). 
HTTP Upload
The HTTP upload function sends notifications via HTTP or 
via HTTP with attached videos, depending on the network 
camera event.
(1) [Notification] 
Select [Notification Only with HTTP] or [Video 
attached Notification with HTTP] as the content of 
notification. 
(2) [URI] 
Enter the URI to be uploaded to (using up to 255 
characters). 
(3) [User Name], [Password] 
Enter the user name and password required for 
authentication. 
Digest authentication is not supported.
(4) [Proxy Server] 
Enter the host name or IP address of the proxy server 
(using up to 63 characters). 
(5) [Proxy Port] 
Enter the port number of the proxy server (factory 
default setting is [80]). 
(6) [Proxy User Name], [Proxy Password] 
Enter the user name and password of the proxy 
server. 
Digest authentication is not supported.
(7) [Parameter (query string)] 
Enter the parameter (using up to 127 characters). 
Parameters can be specified using the “%” character 
(p. 144).
(8) [HTTP Upload Test] 
Clicking [Exec] initiates an upload test based on the 
settings currently entered. Only one JPEG image is 
uploaded. It is not necessary to click [Apply].
After entering a password, first click [Exec], then 
[Apply] the password.FTP Upload
(1) [Notification] 
The content of notification is set to [Video data upload 
with FTP]. 
(2) [FTP Server] 
Enter the host name or IP address of the FTP server 
(using up to 63 characters). 
(3) [User Name], [Password] 
Enter the user name and password required for 
authentication. 
(4) [PASV Mode] 
Select [Disable] or [Enable] for the PASV mode when 
uploading via FTP. 
(5) [File Upload Path] 
Enter the path to the folder where the video file is to be 
uploaded to (using up to 255 characters). 
(6) [File Naming] 
Set a desired file naming rule. 
[YYYYMMDDHHMMSSms] 
Video is uploaded according to the file name format 
of 
“{year}{month}{day}{hour}{minute}{second}{ms}.jpg”. 
(Example: 20130123112122000.jpg) 
[YYYYMMDD Directory/HHMMSSms] 
A subdirectory named “{year}{month}{day}” is 
created first, and then the video is uploaded using 
the file name “{hour}{minute}{second}{ms}.jpg”. 
(Example:  20130123/112122000.jpg) 
[Loop] 
Video is loaded with a file name numbered up to the 
value set in [Maximum Number of Loops]. 
(Example:  0000.jpg, 0001.jpg) 
[Maximum Number of Loops] 
If [Loop] is set under [File Naming], enter the 
maximum number of loops in the range of 0 to 9999. 
Important
 Enter [Proxy Server], [Proxy Port], [Proxy User Name] and 
[Proxy Password] if connecting via a proxy.
 For information about the HTTP upload function and settings, 
contact your nearest Canon Customer Service Center. 
						

							[Upload] Setting HTTP/FTP Upload and E-mail Notification
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Setting Page
[User Setting] 
Video is uploaded according to the file naming 
method specified in [Subdirectory Name to Create] 
and [File Name to Create]. 
[Subdirectory Name to Create], [File Name to 
Create] 
If file naming is set to [User Setting], enter the 
subdirectory name to be created as well as the 
name of the created file (using up to 127 
characters). Parameters can be specified in the 
entry with the “%” character (p. 144).
(7) [FTP Upload Test] 
Clicking [Exec] initiates an upload test based on the 
settings currently entered. Only one JPEG image is 
uploaded. It is not necessary to click [Apply].
After entering a password, first click [Exec], then 
[Apply] the password.
E-mail Notification
(1) [Notification] 
Select [Text Only] or [Text with Image] as the content 
of notification. If [Upload] is set to [Upload Disabled], 
[Text with Image] will not be available. 
(2) [Mail Server Name] 
Enter the host name or IP address of the SMTP server 
(using up to 63 characters). 
(3) [Mail Server Port] 
Enter the port number of the SMTP server (factory 
default setting is [25]).
(4) [Sender (From)] 
Set the e-mail address of the sender (using up to 63 
characters).
(5) [Recipient (To)] 
Set the e-mail address of the recipient (using up to 63 
characters).
(6) [Authentication] 
Select [None], [POP before SMTP] or [SMTP-AUTH] 
for the e-mail authentication method. 
Set an appropriate method according to the 
authentication method used by the SMTP server to 
send to. [User Name], [Password], [POP Server] 
If [POP before SMTP] is selected as the e-mail 
authentication mode, enter the user name and 
password as well as the host name or IP address of 
the POP server required for authentication. 
[User Name], [Password]
If [SMTP-AUTH] is selected as the e-mail 
authentication method, enter the user name and 
password required for authentication. 
(7) [Subject] 
Enter the subject of the e-mail to be sent using up to 
31 ASCII characters. 
(8) [Message Body] 
Enter the message (text) of the e-mail to be sent using 
up to 255 ASCII characters. Parameters can be 
specified with the “%” character (p. 144).
(9) [E-mail Notification Test] 
Clicking [Exec] initiates an e-mail notification test 
based on the settings currently entered. It is not 
necessary to click [Apply].
After entering a password, first click [Exec], then 
[Apply] the password. 
						

							54
Video Server
(1) [Maximum Number of Clients] 
Set the maximum number of clients that can be 
connected to the camera at the same time. Up to 30 
clients can be set. 
If 0 is set, connection is prohibited except for the 
Administrator. 
(2) [Camera Control Queue Length] 
Set the maximum queue length for clients requesting 
camera control privilege from the viewer. The 
maximum number is 30. Enter an integer from 0 to 30. 
If 0 is set, camera control is prohibited except for the 
Administrator. 
(3) [Maximum Connection Time (sec.)] 
Set the time in seconds during which an individual 
client can connect to the camera. The maximum 
number is 65535. Enter an integer from 0 to 65535. If 0 
is set, the connection time becomes unlimited. 
(4) [Camera Control Time (sec.)] 
Set the maximum time during which the viewer can 
control the camera. The maximum number is 3600. 
Enter an integer from 1 to 3600. 
Audio Server
(1) [Audio Transmission from the Camera] 
When [Enable] is selected, the audio input through the 
microphone attached to the camera can be 
transmitted to the Viewer. (2) [Input Volume] 
Set the volume of input for the microphone connected 
to the camera in the range of 1 to 100. The greater the 
value, the larger the input volume becomes. 
(3) [Voice Activity Detection] 
If [Enable] is selected, the audio transmission is 
stopped temporarily when no audio is output. This 
way, the load of the applicable network can be 
reduced. 
(4) [Audio Input] 
Set the microphone input. Select [Line In], 
[Microphone In (dynamic microphone)] or 
[Microphone In (condenser microphone)]. 
[Server] 
Setting the Video Server, Audio Server and HTTP Server
The following can be set here. 
 Video Server
Set the video transmission from the camera. 
Server
Set the audio transmission from the camera. 
Server
Set the authentication method, and HTTP port 
number. 
Caution
Switch line in and microphone in on each setting page 
according to the specification of the microphone. 
Using the wrong input may damage the camera and/or 
microphone. Be sure to configure settings correctly. 
Important
 Video and audio can be distributed to up to 30 clients. 
However, when there are many clients or they are connected 
to the camera over an SSL connection, the video frame rate 
may slow down and the sound may drop out if audio 
reception from the camera is enabled.
 The volume, sound quality, etc., may change depending on 
the characteristics of the microphone used. 
 If the [Input Volume] settings are changed after setting volume 
detection, check the detection setting again. 
 The video and audio may not be synchronized.
 The audio may be temporarily interrupted, depending on the 
performance of the computer and the network environment.
 The audio may be interrupted if anti-virus software is 
enabled.
 Communication may be temporarily interrupted, cutting off 
the audio, if the LAN cable is unplugged and plugged in 
again. If this occurs, reconnect from the Viewer.


 
						

							[Server] Setting the Video Server, Audio Server and HTTP Server
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4
Setting Page
HTTP Server
(1) [Authentication Method] 
Set the authentication method used with the HTTP 
server to [Basic Authentication] or [Digest 
Authentication]. 
(2) [HTTP Port] 
Set the HTTP port number to 80 or in the range of 
1024 to 65535. 
Normally [80] (factory default setting) is used. 
(3) [HTTPS Port] 
Set the HTTPS port number to 443 or in the range of 
1024 to 65535. 
Normally [443] (factory default setting) is used. 
Important
If the setting of [HTTP Port] or [HTTPS Port] is changed, the 
camera may become inaccessible from the active web 
browser. Check beforehand the precautions in “Important” in 
“[Reboot Item] Setting Items Requiring Rebooting” (p. 72). 
						

							56
Video Record Setting
(1) [Video Record Action]
Select the destination of a video recorded when an 
event occurs. To record to a server selected on the 
[Upload] in the setting page, select [Upload] and to 
record to a memory card inserted in the camera, 
select [Record to Memory Card].
Note
The size and format of video recorded according to the [Video 
Record Action] settings are as follows:
Settings must be made in the above setting page to make 
an actual video recording.Volume Detection
(1) [Volume Detection Event] 
Set volume detection to [Disable] or [Enable]. 
(2) [Detect Criteria] 
Set the criteria for generating volume detection events 
to [The reference volume level or above] or [The 
reference volume level or below]. 
(3) [Reference Volume Level] 
Set the reference volume level for detection in the 
range of 0 to 100. 
Perform an actual test at the volume level before 
setting the value. 
(4) [Detect Criteria Duration (sec)] 
Set the duration of the detect criteria in the range of 0 
to 10 (sec.). When the status meeting the detect 
criteria has continued for the duration or longer, an 
ON event is generated. 
(5) [ON Event Operation] 
Select the operation to be performed upon an ON 
event. If [Enable] is selected, (8) [Preset], (9) [Video 
Record] and (10) [E-mail Notification] will be executed 
according to their settings upon an ON event. 
(6) [OFF Event Operation] 
Select the operation to be performed upon an OFF 
event. If [Enable] is selected, (8) [Preset], (9) [Video 
Record] and (10) [E-mail Notification] will be executed 
according to their settings upon an OFF event. 
(7) [Ongoing On Event Operation]
Select the operation to be performed while a volume 
detection event is in progress.
If [Enable] is selected, (9) [Video Record] and (10) [E-
mail Notification] will be executed according to their 
settings during the volume detection event.
(8) [Preset]
If a preset is specified, the camera will orient 
automatically to the specified preset position when a 
volume detection event occurs. To use presets, it is 
[Event] 
Setting Video Record, Volume Detection, External Device Output/Input and 
Timer
The following can be set here. 
 Video Record Setting
Set where video is recorded when an event 
occurs.
 Volume Detection
Set the operation to be performed at the time of 
volume detection. 
 External Device Output
Set external device output.
 External Device Input
Set the operation to be performed when an event 
is triggered by input from an external device. 

Set timer events. 
[Video Record 
Action] settingsApplied video formatApplied video size
[Upload] [Upload] > [Video 
Format] settingsWhen the video format is 
[JPEG], [Video] > [JPEG] > 
[Video Size: Upload / 
Memory card]
When the video format is 
[H.264(1)], [Video] > 
[H.264(1)] > [Video Size] [Record to 
Memory Card][Memory Card] > 
[Video Format] 
settings 
						

							[Event] Setting Video Record, Volume Detection, External Device Output/Input and Timer
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4
Setting Page
necessary to set the presets with the Preset Setting 
Tool under Admin Tools (p. 90). If there is no need for 
additional camera operation, select [None]. 
(9) [Video Record]
Specify the video record action. If [Enable] is 
selected, video will be transmitted to the destination 
selected in [Video Record Action] (p. 56) when a 
volume detection event occurs.
(10)[E-mail Notification] 
Select the e-mail notification operation to be 
performed. If [Enable] is selected, e-mail notification 
is performed when a volume detection event occurs. 
To use this function, [Upload] > [E-mail Notification ] 
must also be set (p. 53).
(11)[External Device Output for ON Event]
Select whether external device output is active or 
inactive upon an ON event. Select [Disable] to disable 
external device output.
(12)[External Device Output for OFF Event]
Select whether external device output is active or 
inactive upon an OFF event. Select [Disable] to 
disable external device output.
External Device Output
(1) [Operation Mode]
Select the normal (inactive) circuit condition.
When [Normally Open] is selected, the output 
terminals remain in the open state during normal 
operation, and the terminals close upon an active 
event and open upon an inactive event.
When [Normally Close] is selected, the output 
terminals remain in the closed state during normal 
operation, and the terminals open upon an active 
event and close upon an inactive event.
(2) [Active Output Format]
Select [Pulse] or [Continuous] for the external device 
output format.(3) [Pulse Output Time (sec)]
Enter the pulse output time in the range of 1 to 120 
(sec.). This setting is available when [Active Output 
Format] is [Pulse].
Note
[Normally Open] means that the contacts are normally in the 
open state (that the circuit is non-conductive), and [Normally 
Close] means that the contacts are normally in the closed state 
(that the circuit is conductive).
External Device Input 
(1) [External Device Input Event] 
Set external device input events to [Disable] or 
[Enable]. 
(2) [Operation Mode]
Select the circuit condition of the connected external 
device.
When [Normally Open] is selected, an active event 
occurs when the terminals of the external device 
close, and an inactive event occurs when the 
terminals open.
When [Normally Close] is selected, an active event 
occurs when the terminals of the external device 
open, and an inactive event occurs when the 
terminals close.
(3) [Active Event Operation] 
Select the operation to be performed upon an active 
event. If [Enable] is selected, (6) [Preset], (7) [Video 
Record] and (8) [E-mail Notification] will be executed 
according to their settings upon an active event. Important
 For notes on use of volume detection, see “Safety 
Precautions” in “Precautions for Use of Built-In Camera 
Functions and Included Software” (p. 7).
 When Admin Viewer/VB Viewer has camera control 
privileges, those camera control privileges are released if the 
camera is moved to a preset position, specified in the 
[Preset] settings (VB-S30D/VB-S31D only), by a volume 
detection event operation.
Important
When [Active Output Format] is set to [Pulse] and a timer is 
used, a single contact output is controlled when the timer starts.
Normally Open
Active Event
Inactive Event1 (Terminals close)
0 (Terminals open)
Normally Close
Inactive Event
Active Event1 (Terminals close)
0 (Terminals open) 
						

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(4) [Inactive Event Operation] 
Select the operation to be performed upon an inactive 
event. If [Enable] is selected, (6) [Preset], (7) [Video 
Record] and (8) [E-mail Notification] will be executed 
according to their settings upon an inactive event.
(5) [Ongoing Active Event Operation]
Select the operation to be performed while an active 
event is in progress.
If [Enable] is selected, (7) [Video Record] and (8) [E-
mail Notification] will be executed according to their 
settings during the active event.
(6) [Preset]
  
If a preset is specified, the camera will automatically 
orient to the specified preset position when an 
external device input event occurs. To use presets, it 
is necessary to set presets with the Preset Setting Tool 
under Admin Tools (p. 90). If there is no need for 
additional camera operation, select [None]. 
(7) [Video Record]
Specify the video record action. If [Enable] is 
selected, video will be transmitted to the destination 
selected in [Video Record Action] (p. 56) when an 
external device input event occurs.
(8) [E-mail Notification] 
Select the e-mail notification operation to be 
performed. If [Enable] is selected, e - m ai l  
notification will be performed when an external 
device input event occurs. To use this function, 
[Upload] > [E-mail Notification] must also be set 
(p. 53).
(9) [External Device Output for Active Event]
Select whether external device output is active or 
inactive upon an active event. Select [Disable] to 
disable external device output.
(10)[External Device Output for Inactive Event]
Select whether external device output is active or 
inactive upon an inactive event. Select [Disable] to 
disable external device output.
(11)[Day/Night Mode Switching]
Select the Day/Night Mode switching behavior when 
an external device input event is triggered.
When [Switch to Day Mode] is selected, switches to 
Day Mode when an active event is triggered, and 
switches to Night Mode when an inactive event is 
triggered.
When [Switch to Night Mode] is selected, switches to 
Night Mode when an active event is triggered, and 
switches to Day Mode when an inactive event is 
triggered.
Select [Disable] to disable Day/Night Mode switching.Timer
(1) [Timer Event] 
Select [Disable] or [Enable] for timer event. 
(2) [Start Time] 
Set the start time of the timer event in 24-hour format. 
(3) [End Time]
Set the end time of the timer event in the 24-hour 
format.
(4) [Repeat Interval] 
Select [1 sec.] [5 sec.] [10 sec.] [30 sec.] [1 min.] [5 min.] 
[10 min.] [15 min. ] [20 min.] [30 min.] [1 hour] [3 hours] 
[6 hours] or [12 hours] for the timer event repeat intervals. 
Select [None] if an operation need not be repeated.
(5) [Video Record]
Specify the video record action. When [Enable] is 
selected, video will be transmitted to the destination 
selected in [Video Record Action] (p. 56) when a timer 
event occurs.
(6) [E-mail Notification] 
Select the e-mail notification operation to be 
performed. If [Enable] is selected, e-mail notification 
is performed when a timer event occurs. To use this 
function, [Upload] > [E-mail Notification] must also be 
set (p. 53).
(7) [External Device Output]
Select whether external device output is active or 
inactive when a timer event occurs. Select [Disable] to 
disable output to an external device.
(8) [Day/Night Mode Switching]
Select the Day/Night Mode switching behavior when a 
timer event is triggered. 
Select [Switch to Day Mode] to switch to Day Mode at 
the start time, and Night Mode at the end time.
Select [Switch to Night Mode] to switch to Night Mode 
at the start time, and Day Mode at the end time.
Important
 When [Day/Night] in the Admin Viewer is set to [Auto], Day/
Night Mode switching will not happen when an external 
device input event is triggered (p. 137).
 When Admin Viewer/VB Viewer has camera control privileges, 
those camera control privileges are released if the camera is 
moved to a preset position, specified in the [Preset] settings 
(VB-S30D/VB-S31D only), by an external device input event 
operation, or if the day/night mode is switched by the [Day/Night 
Mode Switching] function. 
						

							[Event] Setting Video Record, Volume Detection, External Device Output/Input and Timer
59
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Setting Page
Select [Disable] to disable Day/Night Mode switching.
Note
When using timers that run continuously for 24 hours with a 
[Repeat Interval] of 30 seconds or less, set the timer start and 
end times so the timers can run continuously.
Example:
Important
 [Day/Night Mode Switching] can only be set in [Timer 1].
 [External Device Output] and [Day/Night Mode Switching] do 
not support [Repeat Interval].
 When [Day/Night] in the Admin Viewer is set to [Auto], Day/
Night Mode switching will not happen when a timer event is 
triggered (p. 137).
 If the [Day/Night Mode Switching] settings switch Day/Night 
Mode while the Admin Viewer/VB Viewer is assigned camera 
control, control will be released.
Timer[Start Time][End Time][Repeat Interval]
[Timer 1] 0:00 12:00 10 sec
[Timer 2] 12:00 0:00 10 sec 
						

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Authorized User Account
(1) [User Name], [Password] 
Enter the user name and password and then click 
[Add]. The authorized user will be added to the user 
list. 
The user name can consist of up to 15 (single-byte) 
characters using A to Z, a to z, 0 to 9, “-” (hyphen) and 
“_” (underscore). 
The password can consist of 6 to15 (single-byte) 
ASCII characters (space or printable characters). 
(2) [User List] 
A list of authorized users is shown. User authorities 
can be set for these users. Up to 50 users can be 
registered in addition to the Administrator (root). 
Also, the user list can be sorted using the S T 
buttons on the right. 
To delete a user, select the applicable user from the 
user list and then click [Delete]. 
User Authority
[Privileged Camera Control], [Camera Control], [Video 
Distribution], [Audio Distribution] 
Set the user authorities of authorized users and guest 
users. Select the checkboxes corresponding to the 
items you want to permit for each user. 
Note
Authorized users have higher authorities than guest users. 
For details, see “User Authorities and Camera Control Privileges” 
(p. 120).
IPv4 Host Access Restrictions
(1) [Apply Host Access Restrictions] 
Set IPv4 host access restrictions to [Disable] or 
[Enable]. 
(2) [Default Policy] 
If IPv4 host access restrictions are applied, select 
[Authorize Access] or [Prohibit Access] for the default 
policy. 
(3) [Network Address / Subnet] 
Create a list of permitted hosts and restricted hosts 
and set IPv4 address access for each host to [Yes] or 
[No]. 
You can specify the subnet and set access 
restrictions by network or host. 
If access is prohibited, access to all ports is 
restricted. 
Note
If the same address is duplicated, the policy for the address that 
appears highest on the list will be applied. 
[Access Control] Setting User Access Privileges 
The following can be set here. 
 Authorized User Account
Register who can access this camera. 
 User Authority
Set the authorities for authorized users and guest 
users. 
 IPv4 Host Access Restrictions
Specify the hosts from which IPv4 access is 
permitted and restricted. 
 IPv6 Host Access Restrictions
Specify the hosts from which IPv6 access is 
permitted and restricted. 
Important
 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 
setting pages themselves may be prohibited, in which case 
restoring the factory default settings will become the only 
means for recovery.