Casio ISA550WBUN3K9 manual Priorities of NAT Rules, Inbound Traffic, Outbound Traffic

Firewall	6
Configuring NAT Rules to Securely Access a Remote Network

Field	Description
Translated Source	IP address that the specified original source address is
Address	translated to.
Translated Destination	Interface that the specified destination interface is
Port	translated to.
Translated Source	Interface that the specified source interface is
Port	translated to.
Tx Packets	Number of transmitted packets.
Rx Packets	Number of received packets.
Tx Bytes/Sec	Volume in bytes of transmitted traffic.
Rx Bytes/Sec	Volume in bytes of received traffic.

Priorities of NAT Rules

If there is a conflict between advanced NAT, static NAT, or port forwarding rules, the security appliance will process the rules as described below.

Inbound Traffic

For an inbound packet, the security appliance will perform NAT before a forwarding decision is made and will use the following order of precedence for the various types of rules:

1.Advanced NAT

2.Static NAT

3.Port Forwarding

4.Port Triggering

Outbound Traffic

For an outbound packet, the security appliance will perform NAT after a forwarding decision is made and will use the following order of precedence for various types of rules.

1.Advanced NAT

2.Static NAT

3.Dynamic PAT

Cisco ISA500 Series Integrated Security Appliances Administration Guide 263