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Hi.
https://kb.fortinet.com/kb/viewContent.do?externalId=FD31893
VIP are used on flow public to private and NAT are used to Private to Public. But in older firmware, the VIP overlap nat table.
NSE-4
NAT - it can be source NAT (SNAT) and destination NAT. With SNAT you can select exiting firewall interface or a pool of IP addresses. VIP is used as an object to map private and public IP. Primarily it is used for DNAT, but when the host, for which you have VIP configured, initiates connection, VIP object is also used for SNAT. There are some exceptions because it depends on software version and NAT settings (policy NAT vs central NAT). One more: VIP can have mapping one-to-one or one-to-many (server or load balancing). You can load balance traffic which is destined to one public IP, to one of your internal servers. It works as normal load balancer with possibility to monitor servers.
To allow Internet users access your website you need DNAT with VIP object as a destination (in the policy).
For Internet access only (for local users) you need SNAT
Hi.
https://kb.fortinet.com/kb/viewContent.do?externalId=FD31893
VIP are used on flow public to private and NAT are used to Private to Public. But in older firmware, the VIP overlap nat table.
NSE-4
NAT - it can be source NAT (SNAT) and destination NAT. With SNAT you can select exiting firewall interface or a pool of IP addresses. VIP is used as an object to map private and public IP. Primarily it is used for DNAT, but when the host, for which you have VIP configured, initiates connection, VIP object is also used for SNAT. There are some exceptions because it depends on software version and NAT settings (policy NAT vs central NAT). One more: VIP can have mapping one-to-one or one-to-many (server or load balancing). You can load balance traffic which is destined to one public IP, to one of your internal servers. It works as normal load balancer with possibility to monitor servers.
Hi,
Suppose I want to publish my website , which nat i ll be using ?
If just need only internet access which nat ill be using
Thanks
To allow Internet users access your website you need DNAT with VIP object as a destination (in the policy).
For Internet access only (for local users) you need SNAT
Hi,
What if there is VPN ,VPN does not require nat . In that How will the configuration
Thanks
Yes, in many cases NAT is not required for VPN
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