Difference Between NIPRNet and SIPRNet

The world has changed from only physical access to completely digitalized. Everything nowadays has become digitalized from the local vendor to the high-maintained shop owner. Because of digitalization Internet is knowing everyone’s personal information. And the misuse of this information can lead to a severe threat to the community. Therefore, NIPRNet and SIPRNet are used to maintain the privacy of the data.


The main difference between NIPRNet and SIPRNet is that NIPRNet is used for non-classified communication and SIPRNet is the component of the Defence Information Systems Network. NIPRNet was used by the Military in yesteryears; therefore, it was also known as MILnet, while the SIPRNet is used by the Defence Ministry of the United States to maintain the highest possible secrecy and safe the most confidential data of the country.


NIPRNet stands for the Non-Classified Internet Protocol Router Network. Which is used for excessing all the unclassified or non-secure networks. The other name for NIPRNet is a nipper. The network was used by Defence Authorities. It is one of the networks owned by the United States.  

SIPRNet stands for Secret Internet Protocol Router Network and is a major component of Defence Information Systems Network, which is used by the Defence Department of the United States. This network is considered to be loop-free and maintains secrecy. The computer network connected via SIPRNet is believed to be safe and secure.

Comparison Table Between NIPRNet and SIPRNet

Parameters of ComparisonNIPRNetSIPRNet
Full FormNon-Classified Internet Protocol Router NetworkSecret Internet Protocol Router Network.
ComponentOther Communication NeedsIt is a component of the Defence Information Systems Network.
Use It is used for exchanging unclassified information.It is used by U.S. Defence Department to protect their secrecy.
Alternative Name nippersipper
Capacity 56 KB to 1 GB1 GB/per second to 10 GB/per second

What is NIPRNet?

The extended form of NIPRNet is the Non-Classified Internet Protocol Router Network. It is owned by the United States. The major use of this network is to exchange emails, messages, etc., which are mainly non-classified information. 

The alternative name used for NIPRNet is “NIPPERnet” or nipper. This network is supposed to be very sensitive and very private. And is believed that NIPRNet is evolved from the Milnet. It was split from ARPAnet in the early 1980s.

Regular access to the Internet is also one of the uses of NIPRNet. The bandwidth capacity of the Internet Protocol service for the same ranges from 56 KB to 1 GB. As all the classified and non-classified data related to military, navy, and defence must be kept confidential, therefore, NIPRNet is used.

It is specially designed to secure private data and is like a router that helps the users to access the external gateway to the Internet by filtering the data and information. It works on a wireless system and can have continuous and consistent access to the Internet. 

If anyone wants to protect his/her unknown data or information, they can choose the NIPRNet network for the same and will have the best Internet experience.

What is SIPRNet?

The extended form of SIPRNet is the Secret Internet Protocol Router Network. It is also owned by the United States along with the NIPRNet. It was made as a component of the Defence Information System Network.  

The alternative name given to SIPRNet is “SIPPERnet” or sipper. This network is highly preferred by the nations as it is considered to be one of the best networks to keep the data confidential and safe. Unlike, NIPRNet it is considered a private network, and access to it is limited. 

SIPRNet allows its user to have access to a Secret Internet Protocol service which helps to provide point-to-point connectivity with the computer network. It is believed that 40,000 to 50,000 people have access to the SIPRNet network. This is because of the changes in the number of people working in the department.

SIPRNet provided the bandwidth capacity of Internet Protocol (IP) service ranging from 1 Gb/per second to 10 Gb/per second. 

The non-classified use of SIPRNet is for sending the different email conversations on a day-to-day basis, while for classified use of the same is to maintain the secret emails, having access to classified websites which are run by the Defence Intelligent Agencies. 

Main Differences Between NIPRNet and SIPRNet

  1. NIPRNet stands for Non-Classified Internet Protocol Router Network while SIPRNet stands for the Secret Internet Protocol Router Network.
  2. The components of NIPRNet are that it is used for non-secure networks, and SIPRNet is used by the Defence Information Systems Network.
  3. The major use of NIPRNet is for exchanging unclassified information with others, while SIPRNet is majorly used by the Defence Department of United States to maintain the secrecy and privacy level of their internal matters.
  4. NIPRNet and SIPRNet are alternatively known as nipper and sipper in the common language.
  5. The capacity of the NIPRNet to provide Internet Protocol service ranges from 56 KB to 1 GB, while the capacity of Internet Protocol services provided by the SIPRNet ranges between 1 GB/per second-10 GB/per second. 


The Internet is providing every now and then facilities to everyone these days. The Internet provides services of online transactions, internet banking, UPI transactions, etc. Now, people can buy anything and everything just by sitting at home. And just because of this Internet is filled up with almost every person’s personal and official detail such as their official government ID’S, bank details, etc.

Therefore, comes the most important factor, which is threatening. Hackers are some genius computer programmers who always search for a moment where they can breach into the Internet Protocol services by leaking the personal information about lakhs of Internet Users.

Thus, to save and maintain the secrecy level of the information exchanged by the Internet, both networks are used at different levels. NIPRNet and SIPRNet are the networks made with high security and fewer loopholes in their computer programming code so that no one can instigate inside the network.

These networks are owned by the United States and are used to exchange high confidential files and information between one and another. Access to these files and networks is also restricted to only the users who are working in the offices.


  1. https://apps.dtic.mil/sti/citations/ADA552290
  2. https://heinonline.org/HOL/LandingPage?handle=hein.journals/airfor64&div=9&id=&page=
  3. https://ieeexplore.ieee.org/abstract/document/4455073
  4. https://apps.dtic.mil/sti/citations/ADA607109

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