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The 'g_tcpdump' command fails when using brackets in the filter syntax Technical Level
Symptoms
  • The 'g_tcpdump' command fails with these errors:

    • [<SGM_ID>]sh: -c: line 0: syntax error near unexpected token `('
    • [<SGM_ID>]tcpdump: illegal token: {
Cause

The underlying mechanism which the 'g_tcpdump' command uses to send commands to all Security Group Members / Security Gateway Modules interprets these characters literally rather than as part of the advanced tcpdump syntax.


Solution
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