Grundig GCI-F1576V, GCI-F1576VH Owner's Manual

GCI-F1576V.149.1.12.11.2014

Owner's Manual

IP Cameras

GCI-F1576V 3 MP Full HD VF Dome IP-Camera 3~9mm AFZ Modul/P-Iris

Lens ICR IR 24LED

GCI-F1576VH 3 MP Full HD VF Dome IP-Camera 3~9mm AFZ Modul/P-Iris

Lens ICR IR 24LED

Content:

1. Introduction

2. Important Safety Instructions

3. Package Contents

. Installation

1. Camera´s Connectors

2. System Requirements 3

3. Power Connection

4. Ethernet Cable Connection

5. Hard Ceiling Installation

6. Detach / Attach the Dome Cover

7. Cable Gland Installation 7

5. Accessing the Camera

6. Video Resolution Setup

7. Browser-based Viewer Introduction

8. Home Page

9. System Related Settings

1. Host Name & System Time Setting

2. Security

3. Network

4. DDNS

5. Mail

6. FTP

7. HTTP

8. Events

9. Storage Management

10. Recording

11. Schedule

12. File Location (on PC)

13. View Information

14. Factory Default

15. Software Version

16. Software Upgrade

17. Maintenance

10. Streaming Settings

1. Video Format

2. Video Compression

3. Video Text Overlay

4. Video ROI

5. Video OCX Protocol

6. Video Frame Rate

7. Video Mask

8. Audio (Audio and Bit Rate Settings)

11. Camera Settings

1. Exposure Setting

2. White Balance Setting

3. Picture Adjustment

4. IR Function

5. Noise Reduction

6. Profile

7. Backlight Setting

8. Digital Zoom Setting

9. WDR Function

10. TV System Setup

12. Logout

13. CMS Software Introduction

14. Internet Security Settings

15. GRUNDIG Viewer Download Procedure

16. Install UPnP Components

17. Deleting the Existing GRUNDIG Viewer

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1. Introduction

Supported with both H.264 and MJPEG standard, this GRUNDIG camera series not only features a superior Full HD resolution for streaming at 25 fps, but also supplies a D1 720p streaming. With more computing power, these IP Cameras can provide more flexibility for users and system managers.

With a compact and sophisticated mechanical design, this IP Dome Camera is easily installed and aesthetic. Additionally, the IP Dome Camera’s vandal proof cover (IK10) can protect the camera from heavy damage.

2. Important Safety Instructions

Be sure to use only the standard adapter that is specified in the specification sheet. Using any other adapter could cause fire, electrical shock, or damage to the product. Incorrectly connecting the power supply may cause explosion, fire, electric shock, or damage to the product. Do not connect multiple products to one single adapter. Exceeding the capacity may cause abnormal heat generation or fire.

Do not place conductive objects (e.g. screwdrivers, coins or any metal items) or containers filled with water on top of the product. Doing so may cause personal injury due to fire, electric shock, or falling objects.

If any unusual smells or smoke comes out of the unit, stop using the product. In this case, immediately disconnect the power source and contact the service center. Continued use in such a condition may cause fire or electric shock.

If this product fails to operate normally, contact the nearest service center. Never disassemble or modify this product in any way. (GRUNDIG is not liable for problems caused by unauthorised modifications or attempted repair.)

To prevent fire or electric shock, do not expose the inside of this device to rain or moisture.

3. Package Contents

These parts are included:

4. Installation

Do not install this product in a location subject to high temperature (over 55°C), low temperature (below -25°C), or high humidity. Doing so may cause fire or electric shock. Keep out of direct sunlight and heat radiation sources. This may cause fire.

Do not install the unit in humid, dusty or sooty locations. Doing so may cause fire or electric shock. Install it in a place with good ventilation.

When installing the unit, fasten it securely and firmly. A falling unit may cause personal injury.

If you want to relocate the already installed product, be sure to turn the power off and then move or reinstall it.

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4.1. Camera´s Connectors

The diagram below shows the IP Dome Camera’s reset button and various connectors. Definition for each connector will be given as follows.

4.2. System Requirements

To perform the IP Camera via web browser, please ensure your PC is in good network connection, and meets the system requirements as described below.

Personal Computer :

1.) Intel Pentium M, 2.16 GHz or Intel Core 2 Duo, 2.0 GHz

2.) 2 GB RAM or more

Operating System : Windows XP / Windows VISTA / Windows 7 / Windows 8

Web Browser : Microsoft Internet Explorer 6.0 or later Firefox Chrome Safari

Network Card : 10Base-T (10 Mbps) or 100Base-TX (100 Mbps) operation

Viewer : ActiveX control plug-in for Microsoft IE

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4.3. Power Connection

Make sure the camera’s power cable is correctly and firmly connected, please refer to the pin definition table in section 4.1. Camera’s Connectors. If using Power over Ethernet (PoE), make sure the Power Sourcing Equipment (PSE) is in use in the network.

4.4. Ethernet Cable Connection

Use of Category 5 Ethernet cable is recommended for network connection. To have the best transmission quality, the cable length shall not exceed 100 meters. Connect one end of the Ethernet cable to the RJ45 connector of the IP Camera, and the other end of the cable to the network switch or PC.

NOTE: In some cases, you may need to use an Ethernet crossover cable when connecting the IP Camera directly to the PC.

Check the status of the link indicator and the activity indicator LEDs. If the LEDs are unlit, please check the LAN connection.

Green Link Light indicates good network connection. Orange Activity Light flashes for network activity indication.

4.5. Hard Ceiling Installation

This IP Dome Camera can be directly installed on a wall or a ceiling. Please note that the wall or ceiling must have enough strength to support the IP Dome Camera.

Follow the steps below to install the Dome Camera:

Items Needed:

- Ethernet Cable

- Power Cable (supplied) (necessary if PSE is not available)

- Alarm Cable (optional)

- Audio Cable (optional)

- Alignment Template (supplied)

- Rubber Washer (supplied) x2

- Plastic Screw Anchor (supplied) x2

- M4x50 Self-tapping Screw (supplied) x2

Tools Needed:

- Tools for drilling

- (+,–) Screwdriver

- Security Torx (supplied)

Step 1: Use a Security Torx to unscrew the two Torx screws on both sides of the Dome Cover, as shown in the figure, and open the Dome Cover. The Security Torx is included in the package.

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NOTE: The dome cover is attached to the camera housing with an anti-drop cable. Users can choose whether to separate the cover from the housing. In later installation steps, the dome cover is detached from the housing. If users you would like to detach the cover, please see Chapter 4.6. "Detach / Attach the Dome Cover".

Step 2: Choose a suitable conduit entry on the camera for cable connection (Side Conduit Entry or Back Conduit Entry). If users are using the back conduit entry for cable connection, please use a coin to open the conduit entry block (shown in the figure) and put the block on the side conduit entry.

Step 3: Place the supplied rubber washers on the camera housing (as shown in the figure).

Step 4: Thread the Ethernet cable through the chosen conduit entry hole. If there are other cables, such as a power cable, alarm I/O cable or audio I/O cable, please also insert them through the conduit entry.

Step 5: Connect the cable(s) to the camera. For alarm I/O and audio I/O connections, please refer to Chapter 4.1. for further details. If the back conduit entry is used, please thread the other end of the cable(s) through the cable entry hole at the installation location.

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Step 6: Place the camera where the installation location is and align the screw holes with the drilled holes. Tighten the two supplied M4x50 self-tapping screws at the spot shown in the figure to fix the camera to the wall / ceiling.

Step 7: Adjust the pan / tilt / spin holders of the camera to point the lens at a desired camera view. Users can see the camera view by accessing the Camera's Browser-viewer (please refer to Chapter 6 for further details). Alternatively, users can also check the camera view via connecting a BNC monitor. Please refer to the figures below for the corresponding type of BNC connector. Please note that the extending type BNC connector needs an extension cable.

NOTE: The pan adjustment angle is nearly 360°. The tilt angle is adjustable between 0° ~ 80°. The spin adjustment angle is adjustable between -100° ~ 100°.

NOTE: If the BNC cable is connected, it must be disconnected for camera lens adjustment. Otherwise the dome cover cannot be installed.

Step 8: Fasten the tilt screw as in the picture to fix the tilt angle of the camera.

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Step 9: Place the inner cover back onto the camera. If the dome cover is separated from the camera housing, please fasten the antidrop cable back to the housing by referring to Chapter 4.6. "Detach / Attach the Dome Cover". Then align the arrow mark on the dome cover with the one on the camera housing and fasten the two security screws.

4.6. Detach / Attach the Dome Cover

The dome cover is attached to the camera housing with an anti-drop cable. Follow the instructions below to detach / attach the dome cover.

Detach the Dome Cover : To detach the dome cover from the camera housing, please loosen the screw indicated in the figure on the left.

Attach the Dome Cover : To attach the dome cover to the camera housing, fasten the anti-drop cable to the housing at the spot indicated in the figure on the left.

4.7. Cable Gland Installation

For the Vandal Proof Dome-Indoor housing, the cable connection can be protected from water damages by installing the cable with a cable gland.

Cable Gland Installation Kit:

1. Silicone Rubber Ring

2. Cable Gland 2a. Black Rubber Ring (on the Cable Gland)

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Items Needed:

- Ethernet Cable

- Power Cable (supplied) (necessary if PSE is not available)

- Alarm Cable (optional)

- Audio Cable (optional)

Tools Needed:

- (+,–) Screwdrivers

- Hot Glue Gun

- Hot Glue

- Security Torx (supplied)

Step 1: First put the silicone rubber ring on the cable gland body from the top, as shown on the left, for later use.

Step 2: Loosen the thread-lock sealing nut of the cable gland. Then thread the Ethernet cable through the sealing nut and the gland body. If there are other cables, such as the power cable, alarm I/O cable or audio I/O cable, please also insert them through the sealing nut and the gland body.

NOTE: The terminal block of the power cable needs to be loosened before threading the cable through the sealing nut and the gland body. After threading through, attach the terminal block back to the cable as shown in the figure.

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Step 3: Loosen the two security screws indicated in the figure with the supplied security torx and open the dome cover.

NOTE: The dome cover is attached to the camera housing with an anti-drop cable. Users can choose whether to separate the cover from the housing. In later installation steps, the dome cover is detached from the housing. If you would like to detach the cover, please see Chapter 4.6. "Detach / Attach the Dome Cover".

Step 4: Choose a suitable conduit entry on the camera for cable connection (Side Conduit Entry or Back Conduit Entry). If you are using the back conduit entry for cable connection, please use a coin to open the conduit entry block (shown in the figure) and put the block on the side conduit entry.

Step 5: Thread the cables through the chosen conduit entry and connect them to the camera. For alarm I/O and audio I/O connections, please refer to Chapter 4.1.

Step 6: Fasten the gland body to the side conduit entry / back conduit entry. Then tighten the thread-lock sealing nut to the gland body.

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Step 7: Seal the end of the thread-lock sealing nut with hot glue by using a hot glue gun. Make sure there is no gap between the sealing rubber and the cables, otherwise the waterproof function cannot be guaranteed.

Step 8: If the dome cover is separated from the camera housing, please fasten the anti-drop cable back to the housing by referring to Chapter 4.6. "Detach / Attach the Dome Cover". Then align the arrow mark on the dome cover with the one on the camera housing and fasten the two security screws.

5. Accessing the Camera

For initial access to the IP Camera, users can search the camera through the installer program: GRUNDIG Finder.exe, which can be found on the supplied CD.

GRUNDIG Finder Software Setup :

Step 1: Double-click on the program GRUNDIG Finder.exe (see the desktop icon below). Its window will appear as shown below. Then click on the “Find Device” button.

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Step 2: The security alert window will pop up. Click “Unblock” to continue.

Device Search :

Step 3: Click “Find Device” again, afterwards all IP devices found will be listed on the page, as shown in the picture below. The IP Camera’s default IP address is: 192.168.1.1.

Step 4: Double-click or right-click and select “Browse” to access the camera directly via the web browser.

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Step 5: Then the dialogue box for entering the default user name and password (as shown below) will appear for login to the IP Dome Camera.

The default login ID and password for the Administrator are:

NOTE: ID and password are case sensitive. It is strongly advised to alter the administrator’s password due to security concerns. Please refer to section 9.2. Security for further details.

Additionally, users can change the IP Camera’s network property, either to DHCP or Static IP, directly in the device finding list. Please refer to the following section for changing the IP Camera’s network property.

Example of changing the network property of the IP Camera : Users can directly change an IP Camera’s network property, e.g. from static IP to DHCP, in the finding device list. The procedure to change the IP Camera’s network property is explained below:

Step 1: In the ﬁnding device list, click on the IP Camera of which you would like to change the network property. Right-click on the selected item, and select “Network Setup”. Meanwhile, record the IP Camera’s MAC address for future identification.

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Step 2: The “Network Setup” page will come out. Select “DHCP,” and click on the “Apply” button at the bottom of the page.

Step 3: Click on “OK” in the Note of setting the change. Wait for one minute to search again for the IP Camera.

Step 4: Click on the “Find Device” button to search all the devices. Then select the IP Camera with the correct MAC address. After double-clicking on the IP Camera, the login window will appear.

Step 5: Enter User name and Password to access the IP Camera.

Installing the GRUNDIG Viewer Software Online :

For initial access to the IP Camera, a client program, GRUNDIG Viewer, will be automatically installed to your PC when connecting to the IP Camera.

If the Web browser does not allow the GRUNDIG Viewer installation, please check the Internet security settings or ActiveX controls and plug-ins settings (see 14. Internet Security Settings) to continue the process.

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The Information Bar (just below the URL bar) may come out and ask for permission to install the ActiveX Control for displaying video in browser (see the picture below). Right-click on the Information Bar and select “Install ActiveX Control…” to allow the installation.

Then the security warning window will pop up. Click “Install” to carry on with the software installation.

Click on “Finish” to close the GRUNDIG Viewer window when download is finished. For detailed software download procedure, please refer to chapter 15. GRUNDIG Viewer Download Procedure.

NOTE: If the Live Video Pane on the Home Page cannot be shown to the users who have installed the GRUNDIG Viewer on the PC previously, please refer to the procedure in chapter 17. Deleting the Existing GRUNDIG Viewer.

Once logged in to the IP Camera, users will see the Home page as shown below:

Administrator/User Privileges : “Administrator” represents the person who can configure the IP Camera and who authorises users to have access to the camera; “User” refers to someone who has access to the camera with limited authority, i.e. to enter the Home and Camera setting pages.

Image and Focus Adjustment : Adjust zoom and focus of the lens as necessary to produce a clear image. To set the correct angle of view and focus, you can use the BNC output on the camera. For this, please connect a PAL monitor to the BNC output.

6. Video Resolution Setup

Users can set up the Video Resolution on the Video Format page of the user-friendly browser-based configuration interface. The page “Video Format” can be found in the IP camera menu under the path: Streaming > Video Format. Under the Video Resolution section in the menu page “Video Format”, please select your preferred resolution setting.

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7. Browser-based Viewer Introduction

The picture below shows the Home page of the IP Camera’s viewer window.

There are four tabs on the left (System, Streaming, Camera and Logout) and one tab on the right (Languages).

System setting : The administrator can set host name, system time, admin password, network related settings, etc. Further details will be interpreted in chapter 9. System Related Settings.

Streaming setting : The Administrator can configure a specific video resolution, video compression mode, video protocol, audio transmission mode, etc. in this page. Further details will be interpreted in chapter 10. Streaming Settings.

Camera setting : Users can adjust various camera parameters. Further details will be interpreted in chapter 11. Camera Settings.

Logout : Click on this tab to re-login to the IP Camera with another user name and password. Further details will be interpreted in chapter 12. Logout.

Languages : Please choose one of the supported languages (German, English, French, Italian or Russian).

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8. Home Page

In the Home page, there are several function buttons that are specified below.

Display Mode (Screen Size Adjustment) : The display size of the image can be adjusted to x1/2 and full screen.

Talk Button (on/off) : Talk function allows the local site to talk to the remote site. Click on this button to switch it on/off. Please refer to section 9.2. Security: User >> Add user >> Talk/Listen for further details. This function is only open to the “User” who has been granted this privilege by the Administrator. Please note that additional equipment will be necessary.

NOTE: This function is only open to the “User” who has been granted this privilege by the administrator.

Speaker Button (on/off) : Click on the Speaker button to mute/activate the audio.

NOTE: This function is only open to the “User” who has been granted this privilege by the administrator.

Snapshot Button : After clicking this button, the JPEG snapshots will be automatically saved in the appointed place. The default place of saving snapshots is: C:\. For changing the storage location, please refer to section 9.12. 'File Location (on PC)' for further details.

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NOTE: Users with the Windows 7 or Windows 8 operating system on their PC need to follow the following procedure to be able to use the Snapshot function. First you need to log on to your computer as an Administrator. Then please go to Windows Start menu, click with the right mouse button on your Internet Browser and select in the appearing pop-up window “Run as Administrator”. Afterwards you can log in to your camera as usual (as an administrator or user).

Video Streaming Pause/Restart Button (pause/restart) : If you click on the stop button to disable video streaming, the live video will be displayed as black. Click on the restart button to show the live video again.

Recording Button (on/off) : When you click on this button, the recordings from the Live View will be saved to the location specified in the “File Location” page. The default storage location for the recordings is: C:/. See section 9.12. 'File Location (on PC)' for further details.

NOTE: Users with the Windows 7 or Windows 8 operating system on their PC who want to use the Recording function, need to follow the procedure in the NOTE below the “Snapshot button” section in this chapter.

Manual Trigger Button : Click on the <Manual Trigger > button to turn the manual trigger on or off.

Multiple Languages Support : Multiple languages are supported for the viewer window interface.

The following functions are additional in the camera models GCI-F1576V and GCI-F1576VH:

Optical/Digital Zoom Control : In Normal View display mode, users can implement zoom in/out by clicking in the zoom setting bar and adjusting the zoom manually or by clicking on the "Wide" / "Tele" buttons. In Full Screen mode, users can rotate the mouse wheel to zoom in/out on the image. When the camera reaches the limit of its optical range, it will automatically switch to digital zoom.

Zoom Adjustment : Click on the buttons "Wide"/ "Tele" to control zoom in/out.

Focus Adjustment : Users can adjust the focus manually via the "Near" and "Far" buttons.

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- Push AF: The one-push AF function is for fixing the focus on the target using Auto Focus (AF). After one click on the button, AF will be implemented.

AF Mode:

- Manual (Manual Focus): After clicking on the “Manual” button, users can adjust the focus manually via the “Near” and “Far” buttons. This status will be displayed above the live screen.

- Zm Trig: The Zoom Trigger function is for fixing the focus everytime the Zoom is adjusted.

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9. System Related Settings

The picture below shows all categories under the “System” tab. Each category in the left column will be explained in the following sections.

NOTE: The “System” configuration page is only accessible by the Administrator.

9.1. Host Name & System Time Setting

Click on the first category <System> in the left column; the page is shown below.

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Host Name : The name is for camera identification (max. 30 characters). If the alarm function (see section 9.8.1. 'Application (Alarm Settings)') is enabled and is set to send an alarm message by Mail/FTP, the host name entered here will be displayed in the alarm message.

Time Zone : Select the time zone you are in from the drop-down menu.

Enable Daylight Saving Time : To enable DST, please check the item and then specify the time offset and DST duration. The format for time offset is [hh:mm:ss]; for instance, if the amount of time offset is one hour, please enter “01:00:00” into the field.

Time format: Choose a time format (yyyy/mm/dd or dd/mm/yyyy) from the drop-down menu. The time format for “PC date” and “Date” under <Sync with Computer Time> and <Manual> will be changed according to the selected format.

Sync with Computer Time : After selecting this item, the video date and time display will be synchronised with the PC.

Manual : The Administrator can set the date, time and day manually. Entry format should be identical with the format shown next to the enter fields.

Sync with NTP server : Network Time Protocol (NTP) is an alternative way to synchronise your camera’s clock with a NTP server. Please specify the server you wish to synchronise the camera with in the enter field. Then select an update interval from the drop-down menu. For further information about NTP, please see the web site: www.ntp.org.

NOTE: Click on < Save > to confirm the new setting.

9.2. Security

When you click on the category <Security>, there will be a drop-down menu with several tabs including <User>, <HTTPS>, <IP Filter>, and <IEEE 802.1X>.

Enable IEEE 802.1X : Check the box to enable IEEE 802.1X.

Click “Save” to save the IEEE 802.1X/ EAP—TLS setting.

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9.2.1. User

When you click on the <User> tab under the category <Security>, the <User> page will be shown as in the picture below.

NOTE: The following characters are valid: A-Z, a-z, 0-9, !#$%&’-.@^_~.

Admin Password : Change the administrator’s password by putting in the new password in the “Admin password” and “Confirm password” text boxes. The input characters/numbers will be displayed as dots for security purposes. After clicking <Save>, the web browser will ask the Administrator for the new password for access. The maximum length of the password is 14 digits.

Add User : Type in the new user name and password and click <Add> to add the new user. The user name can have up to 16 characters, the password up to 14 characters. The new user will be displayed in the user name list. A maximum of 20 user accounts can be set. To each user the privileges “Camera control”, “Talk” and “Listen” can be assigned

- I/O access: This item supports fundamental functions that enable users to view the video when accessing the camera.

- Camera control: This item allows the specified User to change the camera's parameters on the Camera Setting page.

- Talk/Listen: Talk and Listen functions allow the appointed user on the local site (PC site) to communicate, for instance, with the administrator on the remote site.

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Manage User : To delete a user, pull down the user list, and select the user name you wish to delete. Then click <Delete> to remove it. To edit a user, pull down the user list and select a user name. Click <Edit> to edit the user’s password and privileges.

NOTE: It is required to enter the User password and to select the functions that will be open to the user. When finished, click <Save> to modify the account authority.

Streaming Authentication Setting : The Network Camera provides two types of security settings for an HTTP transaction: basic and digest. Please choose the one that meets your network security requirements.

- Disable: To inactivate the function.

- Basic: In this mode, the password is sent in plain text format and there can be potential risks of the password being intercepted.

- Digest: User credentials are encrypted using an MD5 algorithm and thus provide better protection against unauthorised accesses.

Click on the <Save> button to confirm the settings.

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9.2.2. HTTPS

<HTTPS> allows secure connections between the IP Camera and the web browser using the <Secure Socket Layer (SSL)> or the <Transport Layer Security (TLS)>, which prevent others from snooping on your camera settings or Username/Password. It is required to install a self-signed certificate or a CA-signed certificate for implemention of <HTTPS>.

After clicking on the <HTTPS> tab, the HTTPS setting page will be shown as in the figure below.

To use HTTPS on the IP Camera, a HTTPS certificate must be installed. The HTTPS certificate can be obtained by either creating and sending a certificate request to a Certificate Authority (CA) or creating a self-signed HTTPS certificate, as described below.

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Create self-signed certificate : Before a CA-issued certificate is obtained, users can create and install a self-signed certificate first.

Click on the <Create> button under “Create self-signed certificate” and provide the requested information to install a self-signed certificate for the IP Camera. Please refer to the last part of this section: "Provide the Certificate Information" for more details.

NOTE: The self-signed certificate does not provide the same high level of security as when using a CA-issued certificate.

Provide the requested information in the Create Dialog. Please refer to the section "Provide the Certificate Information" for more details.

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Install signed certificate : Click on the “Create Certificate Request” button to create and submit a certificate request in order to obtain a signed certificate from the CA (Certificate Authority).

When the request is complete, the subject of the Created Request will be shown in the field. Click “Properties” below the Subject field, copy the PEM-formatted request and send it to your selected CA.

When the signed certificate is returned, install it by uploading the signed certificate.

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Provide the Certificate Information : To create a Self-signed HTTPS Certificate or a Certificate Request to CA, please enter the information as requested:

- Country: Enter a 2-letter combination code to indicate the country the certificate will be used in. For instance, type in “GB” to indicate Great Britain.

- State or province: Enter the local administrative region.

- Locality: Enter other geographical information.

- Organisation: Enter the name of the organisation to which the entity identified in “Common Name” belongs.

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- Organisation Unit: Enter the name of the organisational unit to which the entity identified in “Common Name” belongs.

- Common Name: Indicate the name of the person or other entity that the certificate identifies (often used to identify the website).

- Valid days (Self-signed Certificate Only): Enter the period in days (1~9999) to indicate the valid period of the certificate.

Click “OK” to save the Certificate Information after completing.

9.2.3. IP Filter

When using the IP filter, access to the IP Camera can be restricted by denying/allowing specific IP addresses.

General :

- Enable IP Filter: Check the box to enable the IP Filter function. Once enabled, access to the IP Camera will be allowed/denied for the listed IP addresses (IPv4).

Select “Allow” or “Deny” from the drop-down list and click the <Apply> button to determine the IP Filter behaviour.

- Add/Delete IP Address: Input the IP address and click the <Add> button to add a new filtered address.

The Filtered IP Addresses list box shows the currently configured IP addresses. Up to 256 IP address entries may be specified.

To remove an IP address from the list, please select the IP and then click the <Delete> button.

In addition, to filter a group of IP addresses, enter an address in the blank space followed by a slash and a number ranging from 1 to 31, e.g. 192.168.2.81/30. The number after the slash can define how many IP addresses will be filtered. For details, please refer to the following example.

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Example: Filtering a group of consecutive IP addresses

The steps below show what will be filtered when 192.168.2.81/30 is entered.

Step 1: Convert 192.168.2.81 to binary numbers. The binary numbers for the decimal numer 192.168.2.81 are:

11000000.10101000.00000010.01010001.

(For conversion, you can use the calculator of Windows. For Windows XP and Windows Vista, click <View> on the calculator and click <Scientific>. For Windows 7 and Windows 8, click <View> on the calculator and click <Programmer>. Then select first <Dec> and enter the decimal number, for example "2", and select <Bin> to calculate the according binary number. You will receive "10". In the example above, 6 zeros were added before the number 10 because every binary number must consist of 8 digits.)

The number “30” after the slash is referring to the first 30 digits of the binary numbers.

Step 2: Convert a few IP addresses before and after 192.168.2.81 to binary numbers. Then compare their first 30 digits to the binary numbers of 192.168.2.81.

a. Convert 192.168.2.80 to binary numbers. The binary numbers are 11000000.10101000.00000010.01010000. The first 30 digits are the same with the binary numbers of 192.168.2.81, thus 192.168.2.80 will be filtered.

b. Convert 192.168.2.79 to binary numbers. The binary numbers are 11000000.10101000.00000010.01001111. The first 30 digits are different with the binary numbers of 192.168.2.81, thus 192.168.2.79 will not be filtered. This also means the IP addresses before 192.168.2.79 will not be filtered. Therefore, users can stop converting the IP addresses before 192.168.2.79 to binary numbers.

c. Repeat the same procedure in “a” with the IP addresses after 192.168.2.81. Stop when the situation explained in “b” happens. Namely, the 30th digit of the binary numbers of IP address 192.168.2.84 is different, and will not be filtered.

As a result, the IP addresses 192.168.2.80 to 192.168.2.83 will be filtered when entering 192.168.2.81/30. But IP addresses 192.168.79 and 192.168.84 will not be filtered when entering 192.168.2.81/30.

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Grundig GCI-F1576V, GCI-F1576VH Owner's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual