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longnv's avatar
longnv
Icon for Cirrus rankCirrus
Nov 22, 2022
Solved

F5 Bigip LTM NAT64 config

Hi everybody, I have a problem with VS using IPv6 and Pool, Node IPv4. My config : - VS type is Performance Layer 4;   - Source Address Translation: none - Address Translation: enable - Port Tr...
application delivery
  • longnv's avatar
    longnv
    Nov 23, 2022

    This problem has resolved. TCP conection from F5 to internal over 64k connection, so a new tcp session is started with the same ports  => tcp connection reset. Need SNAT with other self ip connection to internal.

mihaic's avatar
mihaic
Icon for MVP rankMVP
Nov 23, 2022

well, a tcpdump and some logs are a starting point.

tcpdump -ni 0.0:nnnp -s0 -c 100000 -w /var/tmp/capture.pcap host 2001:df1:1f40::11 

    • longnv's avatar
      longnv
      Icon for Cirrus rankCirrus
      Nov 23, 2022

      This problem has resolved. TCP conection from F5 to internal over 64k connection, so a new tcp session is started with the same ports  => tcp connection reset. Need SNAT with other self ip connection to internal.

      • Leslie_Hubertus's avatar
        Leslie_Hubertus
        Ret. Employee
        Nov 28, 2022

        Thanks for letting us know how you were able to resolve the issue!