Depending on your requirements and network configuration, you can have different types of NAT configured. NAT is...
By submitting your email address, you agree to receive emails regarding relevant topic offers from TechTarget and its partners. You can withdraw your consent at any time. Contact TechTarget at 275 Grove Street, Newton, MA.
usually configured on your router or firewall. This allows internal network resources to become available to the public (Internet) and provides Internet access to all of your internal hosts.
The most common type of NAT is NAT Overload (Cisco), also known as NAT with Port Address Translation (PAT). With NAT Overload, all internal IP addresses are masked by your router using your unique public IP address (static or dynamic). This allows hundreds of connections to the Internet by smartly changing the source port of each connection (where required).
Generally NAT is a big topic, and you'll find plenty of information on the IT Knowledge Exchange's NAT question and answer section and www.Firewall.cx, including detailed diagrams and examples to help make the concern clear.
Related Q&A from Chris Partsenidis
Expert Chris Partsenidis offers guidelines for a smooth and successful PSTN to VoIP migration.continue reading
What SIP trunking basics should you know before you deploy? SIP trunking guru Chris Partsenidis explains what you need to know about SIP trunking ...continue reading
There are many new network security devices on the market today. Expert Chris Partsenidis opines on whether these can replace firewalls.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.