Technology & Services
NAT/Firewall:
In the field of computer networking, NAT stands for Network Address Translation. In simplest terms, NAT allows many devices on a private network to share a single gateway to the internet. In turn, all of those devices will have the same public IP address—that of the gateway—and unique private IP addresses. These gateways are commonly found on wifi routers and some VPN services. For example, all of the devices connected to a NAT-enabled wifi router have different private IP addresses, but share the router’s public IP address.
A firewall is a layer of protection that prevents unwanted communications between devices on a network, such as the internet.
A NAT firewall works by only allowing internet traffic to pass through the gateway if a device on the private network requested it. Any unsolicited requests or data packets are discarded, preventing communication with potentially dangerous devices on the internet. If inbound internet traffic does not have a private IP address to forward to beyond the gateway, the NAT firewall knows the traffic is unsolicited and should be discarded.
We provide quality services & development of:
- Router, NAT Firewall, STUN, Port Forwarding, DHCP, PPPoE
Secure Communication:
Secure communications is a critical requirement in many sensor network missions, especially in ones that are military related. Toward this end several challenges are present. First, since the nature of communication messages is wireless, some information leakage through the transmission of wireless signal is unavoidable. Secondly, the energy constraints of sensors imply that computationally expensive techniques like public key cryptography are infeasible for WSNs. Simply provisioning a unique key for each sensor to communicate with the base station prevents sensors from communicating with each other. On the other hand, distributing the same key to all sensors exposes all communications under node capture attacks. When sensors are randomly deployed, it is not possible to predict where nodes are likely fall in the network. Hence pre-distributing same keys to those nodes that are within communication range of each other is not possible.
Secure communication protocols which we develop and implement for our customers:
- SRTP, HTTPS, SSLv3/TLSv1