system firewall dnat policy
Use this command to configure a firewall DNAT policy. Firewall DNAT policies translate the destination IP address.
Firewall DNAT policies are available in Reverse Proxy, True Transparent Proxy, and Transparent Inspection operating modes.
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FortiWeb applies a firewall DNAT policy only if IP forwarding is enabled. For details about IP forwarding, see router setting.
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To use this command, your administrator account’s access control profile must have either w or rw permission to the sysgrp area. For details, see Permissions.
Syntax
config system firewall dnat-policy
edit "<policy_name>"
set external-start <external_ipv4>
set mapped-start <mapped_ipv4>
set mapped-end <mapped_ipv4>
set ingress-interface <ingress_port>
set protocol {tcp | udp | icmp}
set port-forwarding {enable | disable}
set external-port-start <external_port>
set external-port-end <external_port>
set mapped-port-start <mapped_port>
set mapped-port-end <mapped_port>
next
end
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"<policy_name>"
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Enter a name that identifies the firewall DNAT policy. Don't use spaces or special characters. The maximum length is 63 characters.
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No default.
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external-start <external_ipv4>
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Enter the first IP address of an IP range to match the destination IP address in the packet header that you want to translate.
The external addresses must be one-to-one mapped to the translated addresses. For example, if the external IP range contains 10 addresses, the mapped IP range must also contain 10 addresses.
After you configure the mapped-start and mapped-end, the system will calculate how many addresses are included in the range and automatically determine the last IP address of the external IP range.
The IP address must be IPv4.
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0.0.0.0
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| mapped-start <mapped_ipv4> |
Enter the first IP address of an IP range that you want to translate the external IP to.
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0.0.0.0
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mapped-end <mapped_ipv4>
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Enter the last IP address of an IP range that you want to translate the external IP to.
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0.0.0.0
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| ingress-interface <ingress_port> |
Enter the interface to match the network interface through which the packet comes in FortiWeb.
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No default.
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| protocol {tcp | udp | icmp} |
Select the protocol type of the packets that you want to translate.
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No default.
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| port-forwarding {enable | disable} |
Enable to translate the port in destination IP address.
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No default.
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| external-port-start <external_port> |
Enter the first port in the port range to match the port in destination IP address.
This option is available only when port-forwarding is enabled.
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0
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| external-port-end <external_port> |
Enter the last port in the port range to match the port in destination IP address.
This option is available only when port-forwarding is enabled.
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0
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mapped-port-start <mapped_port>
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Enter the first port in the port range to translate the external port range to.
This option is available only when port-forwarding is enabled.
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0
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mapped-port-end <mapped_port>
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Enter the last port in the port range to translate the external port range to.
This option is available only when port-forwarding is enabled.
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0
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