The DVR has two lan ports, how to set it so that it can be accessed remotely by computer？

What is a dual network port video recorder?

Hikvision high-end hard disk video recorders all support dual LAN ports, and support functions such as multiple addresses, network fault tolerance, and load balancing。 Hikvision’s dual-network card DVR for security cameras can use the network port Lan1 to connect to the router for external network access, and the network port Lan2 to connect to the camera. There are two network working modes: network fault tolerance and multi-site setting

1. Network fault tolerance

The dual network cards of the video recorder use the same IP address, and LAN1 or LAN2 can be selected as the main network card. When the network of one network card fails, the system uses the backup network card to ensure the normal operation of the system network.

2. Multiple address setting

The parameters of the dual network cards of the video recorder are independent of each other, and the network cards work with each other. In the “network card selection”, LAN1 and LAN2 can be set separately. A network card can be selected as the default route. When the system actively connects to the external network, the data will be forwarded by the default route。

In the network fault-tolerant mode, it solves the problem of stuck and dropped connections caused by the heavy network load of a single network port. When a network failure occurs on one of the network ports, the other network port can be used as a backup immediately; One port is directly connected to the LAN, and the other port can be connected to the public network to save resources and avoid problems such as broadcast storms.

How to access the dual network card DVR for security camera remotely

We can connect the Lan1 port of the video recorder to the router and connect to the external network; connect the network cable of the camera to the LAN2 port of the video recorder.

In the DVR for the security camera, network configuration-basic configuration, change the working mode to multi-access setting, select LAN1 for the network card, assume that the IP address 192.168.1.101 is assigned to LAN1, and LAN1 is used to connect to the router for external network access.

The network cable connected to the camera is also connected to the LAN2 port, and the network card is selected as LAN2, assuming that the IP address 192.168.6.101 is assigned to LAN2. At this time, the LAN2 port is 0-segment IP, add a 0-segment camera in the channel management, and the LAN1 port is 1-segment IP, connect to the router, enable the “EZVIZ Cloud” service function, and normally access the external network remotely

The dual LAN ports of the Hikvision hard disk video recorder mainly support functions such as multi-access, fault tolerance, and load. In the actual field environment, the corresponding network port mode can be selected. In the multi-access mode, different IPs can be configured for lan1 and lan2 to connect to the camera respectively. And used for PC remote access.

DVR Frequently Asked Questions

Can I use any DVR with my security cameras?

It depends on the type of security cameras you have and the compatibility with the DVR. Some security cameras are only compatible with specific DVR models, so you should check the specifications of your cameras to see which DVR models are supported. 

Usually, a DVR camera recorder supports security cameras with Onvif protocol. If your web camera is Onvif protocol security camera, then you can try it.

Do I really need a DVR for security cameras?

It depends on what you want to achieve with your security camera system. A security camera DVR with a hard drive (Digital Video Recorder) is a device that records and stores video footage from your security cameras. Without a DVR, your security cameras will only provide live footage, and you won’t be able to record or store any footage for future reference. Of course, if your security camera is with an sd card .then it can record video, then is no need NVR or DVR.

If you’re using security cameras to deter potential intruders or monitor activity in real time, you may not need a DVR. However, if you want to keep a record of events that occurred when you’re not present, or if you need to monitor the footage at a later time, a DVR is an essential component of your security camera system.

Moreover, a DVR camera system with audio allows you to set up motion detection, alarms, audio, and other features that can help you identify potential threats and take appropriate action. Ultimately, whether you need a DVR or not depends on your specific security needs, but in most cases, a DVR is recommended for a reliable and effective security camera system.

What is a DVR for security cameras?

A wireless security camera with DVR and audio (digital video recorder) for security cameras is a device that records and stores audio video footage from one or more security cameras. It is the standard method of recording video footage in modern surveillance systems.

DVR technology uses a hard disk drive (HDD) to store the recorded video. The recorded video can be accessed and played back at any time. Most DVR models can record continuously or be set to record based on motion detection, making them efficient in their use of storage space.

Best security DVR recorders usually include features such as live video monitoring, video playback, motion detection, alarm, audio, and remote access, allowing you to watch footage from anywhere in the world using a computer, tablet, or smartphone. Depending on the model of the DVR, it can support one or more cameras, and they commonly can be used with both analog and IP cameras.

DVRs are useful for both home and commercial security systems, providing a reliable source of video footage that can be used for forensic analysis, employee monitoring, or identifying intruders. They are an essential part of any security camera setup.

Which DVR is best for CCTV cameras?

There are many DVRs available in the market for CCTV camera systems, and choosing the best one depends on your specific needs and budget. Here are some features to consider when choosing a DVR for your CCTV camera system:

1. Number of channels: Before buying a DVR, you should determine how many cameras you need to connect to it. Choose a DVR that has enough channels to support your camera system. Usually, a security camera DVR 8 channel is enough for a home security system

2. Recording resolution: The recording resolution should be high enough to capture clear and sharp images, and it should be compatible with your cameras.

3. Storage Capacity: It should have enough storage capacity to store the recorded videos. The size of the HDD should be chosen according to the number of cameras, resolution, and duration of the footage you want to keep.

4. Remote Access: Choose a DVR that has remote access capabilities so that you can access the live or recorded footage from anywhere, at any time.

5. User-Friendly Interface: The DVR should have a user-friendly interface for easy installation and configuration.

Some of the recommended DVRs for CCTV camera systems are Hikvision, Dahua, Samsung, and QNAP. These brands are known for their quality, reliability, and features. It’s important to research thoroughly and consult an expert to choose a DVR that is best suited to your specific requirements.

Which is better DVR or NVR?

It depends on what type of surveillance camera you use, if it is a network camera, then NVR is fine and cheap. If you use a coaxial camera, then a cheap DVR for security cameras is the best choice. Of course, DVR also has a hybrid network and analog video recorder. Therefore, when you are not sure whether you install a webcam or a coaxial camera. Then you can buy a hybrid VCR DVR.

What is the difference between CCTV and DVR?

CCTV (closed-circuit television) and DVR (digital video recorder) are two different technologies used in surveillance systems. CCTV refers to the video surveillance camera system that captures and transmits video footage of a specific area to a central monitoring station. DVR, on the other hand, is a device that records and stores video footage from CCTV cameras.

Here are the main differences between CCTV and DVR:

1. Functionality: CCTV cameras capture video footage of a location, while DVRs record and store that footage for later use.

2. Technology: CCTV uses analog technology to transmit video signals over coaxial cables to a monitor or central monitoring station. DVRs use digital technology to record and store video footage in a hard disk drive.

3. Efficiency: CCTV cameras usually require continuous monitoring or review of video footage, while DVRs allow for efficient and easy access to past recordings.

4. Features: Most DVRs come with features like remote access, live monitoring, and motion detection, which are not available in CCTV cameras.

5. Cost: CCTV systems are usually less expensive than DVR systems since they do not require as much equipment and setup. However, DVR systems offer more advanced features and capabilities, which may be worth the additional cost.

In summary, CCTV and DVR are two different technologies used in video surveillance systems. CCTV captures video footage, while DVR records and stores it.

Can I buy my own DVR?

Yes, only your camera is compatible with your DVR or NVR.

Can CCTV record if DVR is off?

No, the DVR can not work if not powered. But the camera still works, only video is not recorded.

Do DVR cameras need wifi?

No, if your camera is coaxial analog type, then no need wifi network.

Can DVR connect to WIFI?

No, it depends on your DVR whether supports WIFI. If your DVR is a WIFI DVR, then it is ok.  Or your DVR uses the same LAN as your network camera, and your DVR support Onvis protocol, then it can also connect with wifi if so.

What is the benefit of DVR in CCTV?

DVR (digital video recorder) is a crucial component of CCTV (closed-circuit television) surveillance systems, and it offers several benefits, including:

1. Video Recording: DVRs record and store video footage, which can be used as evidence in investigations, training, or quality control.

2. Easy Access to Video Footage: With a DVR, you can easily access past recordings and retrieve, review, or playback specific events.

3. Remote Access: With internet connectivity, DVRs offer remote access capabilities, which enable you to monitor live footage or playback recorded footage from anywhere in the world using a computer, tablet, or smartphone.

4. Space-saving: DVRs are a space-saving alternative to storing physical recordings, such as VHS tapes or DVDs. Rather, they store footage in a hard drive, which can be quickly and easily accessed when needed.

5. Motion Detection and Alerts: DVRs can be configured to detect motion and send alerts to users when there is suspicious activity, allowing you to keep an eye on the targeted area without constantly watching it.

6. Expandability: DVRs offer expandability and flexibility, allowing you to add cameras to your surveillance system as your needs evolve.

In summary, the benefits of a DVR in a CCTV system include the ability to record and store video footage, easy access to past recordings, remote access capabilities, space-saving, motion detection, alerts, and expandability.

What is the cost of DVR?

A cheap DVR for security cameras is ten dollars，best security DVR recorders is over 100USD 

How many CCTV cameras can be connected to a DVR?

The number of CCTV cameras that can be connected to a DVR (digital video recorder) depends on several factors, including the specifications and capabilities of the DVR and the type of CCTV cameras being used. Here are a few things to consider:

1. Channel capacity: DVRs are available in different channel capacities, ranging from 4 channels to 64 channels, allowing you to connect multiple cameras to a single DVR.

2. Analog and IP camera support: Most DVRs support both analog and IP cameras, allowing for a mix of both camera types to be used.

3. Resolution support: The DVR’s maximum resolution will dictate how many cameras can be supported at a given time. If the cameras’ resolution exceeds the DVR’s supported resolution, you may need to reduce the number of cameras connected.

Ultimately, the number of CCTV cameras that can be connected to a DVR comes down to the specific DVR’s channel capacity and compatibility with the cameras. Consult the manufacturer or a professional installer to determine the maximum number of CCTV cameras that can be supported by your DVR.

For example, one security camera DVR 8 channel 1080P can support an 8 pcs 1080P IP camera.