Configuring the NAT Policy
Aug 08, 2006 How do I configure NAT policies on a SonicWall firewall NOTE: If you need to create an access rule to allow the traffic through the firewall for an inbound NAT policy, refer to How to Enable Port Forwarding and Allow Access to a Server Through the SonicWall. DNS Loopback NAT Policy. The purpose of a DNS Loopback NAT Policy is for a host on the LAN or DMZ to be able to access the webserver on the LAN How to configure destination NAT in Cis - Cisco Community Hi Peers I have a 2 Cisco ASA Firewalls, each in separate sites i.e. Site1 and Site2 that is running site-to-site vpn. This is working fine. Both the LANs are able to ping each other. Site1 LAN Network Address : 10.10.10.0/24 Site2 LAN Network Address : 20.20.20.0/24 At present, from a workstation
Network Address Translation (NAT) occurs at the transport and network layers, and thus the challenge. In order for SIP to work effectively, the NAT issue must be resolved, and that is where the Session Border Element such as the SIP Firewalls and SIParators offered by Ingate, are very important for enabling SIP services to an enterprise network.
Firewall NAT action=masquerade is unique subversion of action=srcnat, it was designed for specific use in situations when public IP can randomly change, for example DHCP-server changes it, or PPPoE tunnel after disconnect gets different IP, in short - when public IP is dynamic.
Configuring the NAT Policy
A firewall is a ‘thing’ that sits between a secure Local Area Network (LAN) such as a home WiFi setup, and a less secure area such as the internet. Its purpose is to control communications between the two, by analyzing the data packets and determining what to do with them. Firewalls and NAT Explained - BlueJeans Support