Screened Subnet: The Payoff of Preventing Network Attacks
In this blog post, we will be discussing why you should use a screened subnet. A screened subnet is a network with two security layers – the first layer being the firewall and the second layer being an outer screening router.
This is not just one extra step in securing your network, but it also prevents attacks on your data and allows for more efficient bandwidth utilization. It’s time to stop worrying about getting hacked and increase productivity by implementing this new technology into your business.
What is a Screened Subnet?
A screened subnet is a network that has an exterior router that prevents any traffic from coming in or out of the firewall, also known as screening routers. This means that all unauthorized connections are blocked, and your data remains protected at all times.
Why Use a Screened Subnet?
Since it only allows for the necessary information to pass through the screen, you can be sure that nothing gets hacked if there are no open ports on the firewall – eliminating 99% of hacks. It also limits access points by using location-based policies so employees cannot visit sites they should not have access to outside work hours – this makes it difficult for hackers who try to gain entry during off business hours when security increases significantly decrease.
The last benefit would be bandwidth optimization. Since the screened subnet only allows specific information to pass through, your data is not constantly transferred. This means that you can use all of your available bandwidth without worrying about slow speeds and dropped connections – increasing productivity.
How Does a Screened Subnet Work?
The firewall is the first line of defense in a screened subnet. The outside router’s job is to stop any unauthorized connections from entering or leaving the network, while the inside router works with stateful firewalls and applications that require access. This ensures that only necessary information can pass through between both layers – keeping your data safe at all times.
The Benefits of Using a Screened Subnet for my Business:
- Prevents network attacks by screening out any unauthorized connections. This allows for more secure data and limits the risk of being hacked into, which is a significant concern among business owners today.
- Limits access points by using location-based policies so employees cannot visit sites they should not have access to outside work hours – this makes it difficult for hackers who try to gain entry during off business hours when security increases significantly decrease.
- Allows full use of available bandwidth with no slowdown or dropped connections since a screened subnet only allows certain information to pass through – increasing productivity.
Essential Things To Consider Before Implementing Screened Subnets Into Your Office
- You need two routers – one acting as your primary Internet router, with multiple Ethernet ports (to connect various devices), and one acting as your screened subnet router.
- The router’s firewall (on the LAN side) needs to be configured correctly, or you will run into issues with connectivity and security.
- You need a good understanding of TCP/IP networking to implement this properly within your network environment. However, it is not very difficult and can typically be done by someone who has experience with routers and firewalls.
Troubleshooting Tips When Setting Up Your Screened Subnet
- Make sure that your router’s firewall is configured correctly.
- The Internet should have a public IP address, and the LAN side needs to be on private network addresses (typically 192.168 .x.x ). This way, each site will only see their local connection information when they scan for new networks – allowing them access through their respective routers while blocking all other connections from outside sources.
- If you have trouble establishing a direct connection between two sites, try using static instead of dynamic routing. In order words: set up one router as the primary with the SAME PUBLIC/STATIC IP ADDRESS AS THE OTHER ROUTER, then add in some sort of password or authentication system so that only that router can see the other’s connection information.
- If you still have trouble having your sites talk to each other, try setting up a VPN tunnel instead of using direct connections. This will help give each site an extra layer of security for accessing data between locations.
- Remember that you must set up your router’s firewall properly to allow only the necessary traffic through.
- You can also use one of our software packages for additional protection and centralized management. This way, if any security threats are detected at one site, they will be blocked from all other sites without configuring each connection on a per-network basis.
Frequently Asked Questions
Q. How much will it cost to implement the screened subnet?
A. The price of implementing a screened subnet varies depending on how many physical locations you have. If your business is in only one location, this technology would not be very beneficial because no other remote sites need protection from unauthorized connections.
However, if you have multiple sites which require protection and access control between each other, then implemented correctly can help significantly reduce security risks by screening out any unauthorized connections.
It should also be noted that while it does increase costs at first (as routers and firewalls must be purchased), in the long run, they pay for themselves because their ability to block network attacks reduces the workforce required for IT support and maintenance – decreasing labor costs over time.
Q. Is it possible to implement screened subnets without having a fixed IP address and public static DNS?
A. Yes – this is one of the great benefits of using a Screened Subnet: you do not need fixed IP addresses or public static DNS for it to work correctly. So if your business uses dynamic addressing, which many small businesses do because they typically have limited resources, then implementing screened subnets will be very beneficial since all remote sites can access the Internet through their local router while still being protected from unauthorized connections.
Q. Is it possible to implement screened subnets without a dedicated firewall?
A. While technically you can get away with not having a direct connection between two sites separated by the Internet, if security is one of your primary concerns, this would be an unwise decision.
A firewall has been specifically designed for this type of application and serves many purposes: blocking network attacks from unauthorized connections, controlling access through policies based on location (this will make more sense once we discuss how screened subnet work), ability to log activity so you always know who accessed what data and when allowing certain users or groups restricted access while disabling other unnecessary ones.
In order words – implementing a proper Screened SubNet should include both routers connected via a direct connection and a firewall to provide the most protection and control over your network.
A screened subnet is a network that has an exterior router that prevents any traffic from coming in or out of the firewall, also known as screening routers. It only allows for the necessary information to pass through the screen. It also limits access points by using location-based policies to avoid visiting subnet sites they should not have access to outside work hours.