This chapter defines Network Address Translation (NAT), introduces types of NAT and How NAT works. This chapter provides the application scenarios and implementation principles of source NAT, destination NAT (including static NAT and dynamic NAT), and bidirectional NAT on the NAT firewall device. ...
How does a switch work? A switch is an essential part of any network. It connects devices together in a network by forwarding data packets or frames between devices based on theirMAC addresses. While all switches are responsible for transmitting data from one device to another, their hardware ...
What is NAT (Network Address Translation)? NAT stands for Network Address Translation, and it is used to allow multiple devices on the same local network to share a single public IP address. This is useful in providing some security layer and helping networks conserve the limited number of IP...
Double NAT occurs when two or more routers on a network are performing Network Address Translation (NAT). Double NAT (sometimes known as double routing) generally does not affect computer use or web browsing but can cause issues with VoIP service. An example of a simple network with one gatew...
How does Network Address Translation work? A NAT works by selecting gateways that sit between two local networks: the internal network, and the outside network. Systems on the inside network are typically assigned IP addresses that cannot be routed to external networks (e.g., networks in the ...
Usually, a DNS response packet carries the public IP address of an internal server. If the NAT device does not replace the public IP address resolved by the DNS server with the private IP address of the internal server, users on the private network cannot access the internal server using ...
Usually, a DNS response packet carries the public IP address of an internal server. If the NAT device does not replace the public IP address resolved by the DNS server with the private IP address of the internal server, users on the private network cannot access the internal server using ...
(nat) and firewalling. on the other hand, an access point focuses solely on providing wireless connectivity to devices within a network. can i use an access point to create a guest network? yes, many access points have the capability to create separate guest networks. this allows you to ...
How does a firewall work? A firewall works according to a list of predefined rules that determine whether traffic can enter or exit a network. These rules change based on what you tell an application to do and how you choose to define dangerous activity. Think of a firewall as a securit...
How does a firewall work? A firewall works according to a list of predefined rules that determine whether traffic can enter or exit a network. These rules change based on what you tell an application to do and how you choose to define dangerous activity. Think of a firewall as a securit...