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Packets are dropped on Security Gateway because maximal number of Symbolic Links for connections was reached in Connections Table Technical Level
  • Very low traffic on the Security Gateway.

  • Kernel debug ('fw ctl debug -m fw + drop') shows:

    dropped by fw_conn_post_inspect Reason: fwconn_init_links (OUTBOUND) failed
  • /var/log/messages file contains the following errors:

    • h_slink: table is full
    • h_getlinks: allocation failed
  • Output of 'fw tab -t connections -s' command shows that the ratio of #SLINKS / #VALS is greater than/equal to 5.


For each entry of real connection, up to eight Symbolic Links (SLINKS) can be added. The above error messages appear when the system tries to add new entries, but the maximal number of SLINK entries was reached in the Connections Table.

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