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Network Address Translation (NAT)

  • Source NAT port overload (cSRX, SRX1500, SRX4100, SRX4200, SRX4600, SRX5400, SRX5600, SRX5800, and vSRX)—Starting in Junos OS Release 22.4R1, We’ve updated the hash algorithm to allow for improved distribution of network traffic, when using the port overloading capability. Enabling better utilization per IP, as appropriate to the type of network traffic.

    The hash algorithm uses the reverse traffic from the server, matches the existing sessions, and reuses the same Network Address Translation (NAT) resources.

    You can configure the updated hash algorithm using the enhanced-port-overloading-algorithm statement at the [security nat source pool pool-name port] and [security nat source interface] hierarchy levels.

    [See pool (Security Source NAT) and source (Security Source NAT).]