How to log NAT state table?

  • I want to record information on the NAT,to syslog server.
    udp 74.86.2XX.4X:1513 <- MULTIPLE:MULTIPLE
    udp -> 12.10.2XX.44:1513 -> MULTIPLE:MULTIPLE
    udp 17.1XX.10.1:9900 <- NO_TRAFFIC:SINGLE
    udp -> 12.10.2XX.44:11749 -> SINGLE:NO_TRAFFIC

    But the firewall rule log only private IP and destination IP connection information.
    No NAT conversion information.
    I use 1:1 NAT for many class C
    I need more detailed LOG, how to make.

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