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Standby cluster member does not answer to IPv6 after installing R80.10 Jumbo hotfix Take 203 and higher Technical Level
Symptoms
  • After installing the latest R80.10 Jumbo hotfix (Take 203), the standby cluster member does not answer to IPv6 requests (icmp6/ssh).

  • Following drops are seen on the Standby member when running: "# fw6 ctl zdebug drop":
    ;[cpu_0];[fw6_1];fw_log_drop_ex: Packet proto=58 XXXX:XXXX:XXXX:XXXX::X.XXXX - > xxxx::xxx:xxxx:xxxx:xxxx.xxxxx dropped by fw_filter_chain Reason: Waiting for cluster sync to initialize;

  • When the Standby cluster member becomes active, it responds again to IPv6 and the new standby stops answering to IPv6 requests.

Solution
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