Static NAT fails for outgoing connections through gateway with ISP Redundancy in Load Sharing mode

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Technical Level

Solution ID	sk25152
Technical Level
Product	Security Gateway, ClusterXL
Version	All
OS	SecurePlatform, SecurePlatform 2.6, Gaia, IPSO 4.x, IPSO 6.2
Platform / Model	All
Date Created	23-Feb-2004
Last Modified	02-Dec-2019

Symptoms

Static NAT fails for outgoing connections through gateway with ISP Redundancy in Load Sharing mode.
When one of the ISP links is down, connections are routed through incorrect interface.
Kernel debug shows (fw ctl debug -m fw + nat drop):
FW-1: fw_first_packet_xlation: Dynamic object is already being resolved - vanishing packet fw_log_drop: Packet proto= ... dropped by fw_first_packet_xlation Reason: Dynamic object is already being resolved

Cause

By default, in ISP Redundancy configuration, statically translated hosts, are not allowed for open outgoing connections.

Solution

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