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    NAT-Reflection still using old IP-Adresse

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    • T
      Techniker_ctr
      last edited by

      Greeting,

      i have a weird problem on just one of my Systems.

      We replaced one of our Webserver with a new one. Now we wanted to take it live, so we changed the 1:1-Natting(external IP is the same) from the old IP (192.168.6.2) to the new one (192.168.6.4).
      Coming from WAN, no Problem, the 1:1-NAT works fine.

      1_1_nat.PNG

      But we also have to access the System from within via its external IP-Adresse ( xxx.xxx.xxx..177 )

      And now, using NAT-Reflection, our pfSense NATs the traffic to the old IP-Adresse (192.168.6.2) instead of the new (192.168.6.4).

      And now its getting a little more strange only when using TCP, ICMP for example NATs just fine.

      States:
      ICMP:
      LAN_192_168_4_X icmp 192.168.4.3:19984 -> 192.168.6.4:19984 (xxx.xxx.xxx.177:19984) 0:0 3 / 3 252 B / 252 B

      TCP:
      LAN_192_168_4_X tcp 192.168.4.3:45640 -> 192.168.6.2:789 TIME_WAIT:TIME_WAIT 1 / 1 60 B / 40 B

      Does anyone have an idea why?

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