Internet CCTV - How to Configure Port Forwarding

When installing your first internet CCTV camera, you will be able to follow the camera's installation manual and will soon see the camera's picture on a computer connected to the same router as the camera. The fun part is trying to access the camera from outside the local network, across the internet, and that is where port forwarding comes in. This article describes how to set up port forwarding.

Once you have your internet CCTV camera in hand, the first step is to configure it, unless you have purchased a fully-configured camera from a specialist supplier. Very soon you will be able to see the camera's picture on your PC or laptop. From the configuration process you will have learned the internal port number of your camera, and its LAN IP address (the IP address on your local network). For example, the LAN IP address could be something like 192.168.1.101 and the camera's internal port number, say, 80. If it is a wireless internet CCTV camera, you will then go on to key the wireless settings into the camera and reach that moment when you unplug the camera from the router, and as if by magic, still see the moving picture!

At this stage, your camera is only accessible within your local network, in the same building. The real beauty of internet CCTV is that you can see your property from anywhere in the world, but as it stands, if you key the address of the camera into a web browser on a computer elsewhere, your router's firewall will block the incoming request and you will get a "page not found" message. Port forwarding, sometimes known as virtual server, is a way to ask the router to send the incoming request onwards to the camera instead of blocking it.

On your PC, you need to open your router's administration pages to set up port forwarding. Look for a menu item called something like "port forwarding", "port mapping", "routing table", "services table" or "virtual servers", usually in the firewall section. Here you will typically find a table with something like the following items that you will need to key in:

LAN IP Address (of the camera. LAN or Local Area Network means your home network.)
Incoming WAN Port Number (WAN or Wide Area Network means the internet)
Destination LAN Port Number (of the camera)

The LAN IP address is the local IP address of the camera that you will have chosen during its set-up, e.g. 192.168.1.101. The destination port number is the internal port number of the camera, either a number you have chosen or its default which is often 80. The incoming WAN port number is the port number you will use to access the camera over the internet. You can only choose certain port numbers - something just above 8000 is safe, say 8150. In some routers, there is no option to set the destination port, in which case the camera's internal port has to be the same as the WAN port. In our example this would mean changing the camera's configuration so that its port was 8150 to match the WAN port instead of the default 80. Once you have keyed these details into the router, you will need to find out your WAN or internet IP address. You will find this on the status or DSL screen within your router's administration pages. I will assume for this article that this IP address is static (does not change over time). Be careful to look for the internet IP address and not the local one that starts 192.168.

Having worked through this process you will be able to access your camera from the internet. If for example your network's internet IP address is 91.103.218.59, you would key an address of http:// 91.103.218.59:8150 into your browser's address bar. After logging in, as if by magic you will be able to see your property or family from wherever you happen to be.

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Remote Desktop Protocol (RDP) Port Forwarding

One thing I have is all about new products love the windows remote desktop feature. I previously used PCAnywhere but I find the remote desktop is now almost as well would like to see a file transfer like PCAnywhere has, but remote desktop is free, so that an advantage for them.

One of the challenges I face is with my network setup port forwarding through my router. There are two problems I have encountered in dealing with the RDP forwarding. The first was, what is the port numberRDP. With a quick search on Google, I discovered that the standard RDP port is 3389th

Now you have the port number, go to your router and us through this door, and after you enable the Remote Desktop feature is outside the network, as long as you both know your IP address or a dynamic DNS service I work from use. To enable Remote Desktop in Windows XP and Windows 2003, go to the Start menu, find the My Computer icon and right click on it. Select theProperties option from the dropdown list and then click on the tag in the window that appears remote. You will see the two check boxes to check the second box, then click the remote user. Make sure that users can access the list and click OK until all dialog exitted. RDP is enabled on your computer.

So this simple setup would work for my network, but the problem is that I have several servers that I want to accessaround with my desktop. Now I could just remote to my desktop and then remote to the other machines from there as they are all on the local network. This would make a lot of data to be transferred, with limited upstream speed needed for the broadband connection that you do not want this, and will cause performance issues with RDP. So I had two options, I would like the log entry was the change in this article. I should add here that secure only if a pageQuestion about a specific time:

*****
WARNING: If you use Registry Editor incorrectly, you may have serious problems that may require you to re-install the operating system. Microsoft can not guarantee that you can solve problems that are not the incorrect use of Registry Editor. Use Registry Editor at your own risk.

You can connect to the Remote Desktop feature in Windows XP Professional on your computer from another computer remotely. WARNING: The Remote Assistance in WindowsXP may not function properly if you change the port. To change the listening port, the remote desktop:

Start Registry Editor (Regedt32.exe).

Locate the following key in the registry:

HKEY_LOCAL_MACHINESystemCurrentControlSetControlTerminalServerWinStationsRDP-TcpPortNumber

On the Edit menu, click Modify, click Decimal, type the new port number, and then click OK.
Close the Registry Editor.

NOTE: If you try on that computer to connect to the remoteDesktop connection, you must enter the new port.

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Technology: kbrdcMac100 kbrdcsearch kbrdcWin100 kbWinXPPro64bit kbWinXPPro kbZNotKeyword kbWinXPProSearch kbWinXPSearch

*****

The other option I had was to go into my router, and specify another external port number, and show that the port 3398 for the IP address of the computer, I wanted to go. I chose the second option, because it was less time and the trick for me.One interesting thing about the way the port number change RDP is security. If the default port number then let someone know that door to see if it is enabled Remote Desktop and potentially compromise your network should be controlled. Let me know if there are problems to fix with the registry, though, and if I just remove it from this article.

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PPTP and HTTP Port Forwarding with Static NAT on a Cisco router

Recently a student asked one of our seminars on port forwarding on a router. Its purpose was to connect clients to a server outside the internal PPTP VPN on this. This article will explain how to come together with a brief look at the static NAT for packets to be transmitted to a web server.

Port forwarding on a Cisco router

Sometimes we have internal resources that should be accessible from the Internet, such as web servers, mail servers or VPN servers.recommending isolate Typically these resources in a DMZ to the LAN of the office for protection from evil, but regardless of how you choose to create, the process of packet forwarding, the router interface belongs requested outside of an internal host . It 's really a fairly simple process. Here is the configuration of a Cisco 2611:

Interface Ethernet0 / 1

IP address 12.1.2.3 255.255.255.0

ip nat outside

!

Interface Ethernet0 / 0

IP Address192.168.101.1 255.255.255.0

IP NAT inside

!

ip nat inside source interface Ethernet0 list 101 / 1 overload

ip nat inside source static TCP 192.168.101.2 1723 interface Ethernet0 / 1 1723

!

access-list 101 permit ip any any

In the above configuration is Ethernet 0 / 1 over the internet with a static address of 12.1.2.3 and Ethernet 0 / 0 is connected to the internal network with a static address 192.168.101.1. Outside NAT configured on E0 / 1inside and NAT is configured on E0 / 0. Access-list 101 works in collaboration with the "IP NAT inside source interface Ethernet0 list 101 / 1 overload" statement to permit hosts E0 / 1 to use to access Internet Sharing, which has assigned IP address Ethernet E0 / 1 interface. connect

The statement "overload" implements PAT (Port Address Translation) which makes it possible. (PAT allows multiple internal hosts to a single address on an external interface by adding different partsThe port numbers for each connection.)

The "ip nat inside source static TCP 192.168.101.2 1723 interface Ethernet0 / 1 1723" statement takes the incoming port 1723 (PPTP) requests on Ethernet0 / 1 and forwards it to the VPN server is 192.168.101.2.

It could be something similar with a Web server using port 1723 to port 80 or to the 443rd's what it would look like this:

Interface Ethernet0 / 1

IP address 12.1.2.3 255.255.255.0

ip natoutside

!

Interface Ethernet0 / 0

IP address 192.168.101.1 255.255.255.0

IP NAT inside

!

ip nat inside source interface Ethernet0 list 101 / 1 overload

ip nat inside source static TCP 192.168.101.2 interface Ethernet0 80 / 1 80

!

access-list 101 permit ip any any

In this example, the Web server are on 192.168.101.2 and instead of forwarding PPTP (port 1723) traffic, we redirect HTTP (port 80) traffic.

Of course, you canCisco router configuration in a similar way forward to accommodate almost any type of traffic from an external interface to an internal one.

Copyright (c) 2008 Don R. Crawley

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Call Forwarding integration with your Small Business Phone System

Call forwarding has a number of advantages for small businesses. in the business of today's world where every sale, every new customer is a line, it is more important than ever for small businesses to ensure they are available for customers. It is also important that they work as efficiently as possible, maximizing the productivity of time they have available. Therefore, many small businesses are integrated with call forwarding phoneSystem.

Some small companies to decide, call transfer their existing phone systems is simply to give customers the ability to integrate them to achieve at any time. If small business is a shop or office, then it will set hours of operation. A virtual phone system with the ability to call a toll-free number is related to the particular, will allow customers to call the company at any time day or night. The company can choose to have calls transferreda home, office or mobile must also make your voice messages and send them to quickly find and e-mail a request. This allows greater flexibility in handling calls, both during office hours and when the doors are closed for the day.

Call forwarding also allows the integration of a small business for both and act big, two factors are discussed in this way to help customers and partners. These systems often come with the option of an automated systemCompanion, which calls for each department will direct the company chooses to create. The ability to look without actually having a personal dimension of this image or the payment of large sums of money to support large is one of the biggest advantages of a system for call forwarding.

Small businesses can benefit from the integration of call forwarding, as it allows them to incoming calls and data capture of Caller ID Caller Display. caller names and phone numbersand addresses can be detected. This allows a company to take a message and prepare a response if necessary, or the file of customer data for further contacts or later. As well, because it allows companies to filter incoming calls, you can avoid talking about individuals who are dangerous or potentially lead to problems because the business is able to see and easy to ignore these calls. Most systems call forwarding with a way to block certain numbers, if the problem persists, please helpensure that the telephone line remains free for the quality of customers.

Call forwarding on initial glance, like a little thing and seem to be simple. But on closer inspection, the benefits are not so small. may forward the possibility of calls to mobile phones and other off-site to reach small business customers at any time. As well as enabling them to extend hours if they are to their customers, this allows small businesses to use their time more wiselyexempt them from the office so they can go and be productive. It also allows the organization and management of customer data and callbacks.

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What is Port Forwarding Software For?

You can get a lot of info from internet about port forwarding. But that info is all for router hardware. It is a very important way to let the service on the computer that behind your router can be accessed by users from internet. Router is playing a role of forwarding data between your computer and internet here. Sometimes, a software will do the same thing too. It will bridge communication between client and server sides. We can call this kind of software as port forwarding software.

For example, you have a computer A and VNC client is installed on it. You want to use the VNC client to access VNC server that installed on computer B. But unfortunately, computer B is located in a private LAN. That means computer A can not directly access the VNC server on computer B. The easy solution to resolve the problem is that we need to choose a computer C that both computer A and B can access. At the same time, we need to deploy a port forwarding software on computer C. The software will forward request to the VNC server on computer B and forward back response to the VNC client on computer A. This will make the VNC client think it is directly talking with the VNC server. So the software is playing the role of forwarding data here like a router. Of course, you can choose another way to resolve the problem. For example, you can choose to create a VPN here. Comparing with VPN, port forwarding software is more easily to be understood and installed.

Another advantage of port forwarding software is that it can turn none SSL software to be more safe by using SSL technology. For example, the communication between VNC client and server is not encrypted. Maybe this is risky. Because the communication data can be easily get by hacker. But we can deploy a port forwarding software with SSL function between the VNC client and server. Then the communication will be encrypted.

Anyway, port forwarding software is really helpful when you want to bridge communication between two or more sides. And the software could be more complex, for example, dynamically choose destination based on incoming ip address, content or just directly use round robin mechanism. The software will like a load balance software for this scenario.

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What is Port Forwarding Software For?

You can get a lot of info from internet about port forwarding. But that info is all for router hardware. It is a very important way to let the service on the computer that behind your router can be accessed by users from internet. Router is playing a role of forwarding data between your computer and internet here. Sometimes, a software will do the same thing too. It will bridge communication between client and server sides. We can call this kind of software as port forwarding software.

For example, you have a computer A and VNC client is installed on it. You want to use the VNC client to access VNC server that installed on computer B. But unfortunately, computer B is located in a private LAN. That means computer A can not directly access the VNC server on computer B. The easy solution to resolve the problem is that we need to choose a computer C that both computer A and B can access. At the same time, we need to deploy a port forwarding software on computer C. The software will forward request to the VNC server on computer B and forward back response to the VNC client on computer A. This will make the VNC client think it is directly talking with the VNC server. So the software is playing the role of forwarding data here like a router. Of course, you can choose another way to resolve the problem. For example, you can choose to create a VPN here. Comparing with VPN, port forwarding software is more easily to be understood and installed.

Another advantage of port forwarding software is that it can turn none SSL software to be more safe by using SSL technology. For example, the communication between VNC client and server is not encrypted. Maybe this is risky. Because the communication data can be easily get by hacker. But we can deploy a port forwarding software with SSL function between the VNC client and server. Then the communication will be encrypted.

Anyway, port forwarding software is really helpful when you want to bridge communication between two or more sides. And the software could be more complex, for example, dynamically choose destination based on incoming ip address, content or just directly use round robin mechanism. The software will like a load balance software for this scenario.

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PPTP and HTTP Port Forwarding with Static NAT on a Cisco router

Recently a student asked one of our seminars on the port forwarding on a router. She wanted to PPTP clients from outside to a VPN server on the get in touch. In this article I will explain how to do it together with a brief look at using static NAT traffic to a web server.

Port Forwarding on a Cisco router

Sometimes we have the internal resources that it be Internet access, such as Web servers, mail servers or VPN servers.In general, I recommend isolating those resources in a DMZ to protect your corporate network from the bad, but regardless of how you choose your design, the process goes forward packages you want from the outside interface of the router to an internal host. It's really quite simple. Here is the configuration on a Cisco 2611 router:

interface Ethernet0 / 1

IP address 12.1.2.3 255.255.255.0

ip nat outside

!

Interface Ethernet0 / 0

IP Address192.168.101.1 255.255.255.0

ip nat inside

!

ip nat inside source list 101 interface Ethernet0 / 1 overload

ip nat inside source static tcp 192.168.101.2 1723-interface Ethernet0 / 1 1723

!

access-list 101 permit ip any any

In the above configuration is Ethernet 0 / 1, is connected to the public Internet with a static address of 12.1.2.3 and Ethernet 0 / 0, connected within the network with a static address 192.168.101.1. NAT is outsideconfigured E0 / 1 and NAT inside is configured on E0 / 0 Access-list 101 works in conjunction with the "ip nat inside source list 101 Ethernet0 / 1 overload" statement to allow to use all the hosts within the E0 / 1 interface to the common use of the Internet, which is assigned the IP address of Ethernet -connect interface to connect to E0 / 1.

The "overload" statement implements PAT (Port Address Translation) which makes this possible. (PAT allows multiple internal hosts to single address on an external interface of sharesAnnexes different port numbers for each port.)

The statement "ip nat inside source static tcp 192.168.101.2 1723-interface Ethernet0 / 1 1723" takes incoming port 1723 (PPTP) requests on Ethernet0 / 1 and forwards them to the VPN server is 192.168.101.2.

You could do something similar with a Web server by using port 1723 443. on port 80 or port Here's what would look like:

interface Ethernet0 / 1

IP address 12.1.2.3 255.255.255.0

ipnat outside

!

Interface Ethernet0 / 0

IP address 192.168.101.1 255.255.255.0

ip nat inside

!

ip nat inside source list 101 interface Ethernet0 / 1 overload

ip nat inside source static tcp 192.168.101.2 80 interface Ethernet0 / 1 80

!

access-list 101 permit ip any any

In this example, the Web server is located at 192.168.101.2 and instead of forwarding PPTP (port 1723) traffic, we will forward HTTP (port 80)Traffic.

Of course, you can configure your Cisco router in a similar manner so that almost any type of traffic from an external interface helps us to an internal host.

Copyright (c) 2008 Don R. Crawley

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