Sumit Gupta

Category: Networking

  • NAT traversal a Pratical Solution

    I have been working and researching on NAT traversal from quite sometime. I found that there are quite a few options available in market for the same. Some of then are very well known STUN, Rend. Server. I also use PwNAT software for the same. But none of them works for me either due to…

  • PWNAT : Example

    I am having trouble to run PwNAT successfully. The problem was created due to sample provided on official site. Here is how you should run it for case Machine A (IP: 192.168.1.3) -> NAT A (IP: 122.x.x.x) -> Internet -> NAT B (IP: 59.x.x.x) -> Machine B (192.168.2.10) Now if Machine A wants to connect…

  • Subnet Mask Calculator

    Every need to calculate subnet mask, you will need this site if you are system administrator: http://www.subnet-calculator.com Calculate the subnet mask with ease.