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Security Gateway with enabled SecureXL might crash when processing a packet with Multicast Source IP address
Symptoms
  • Security Gateway might crash in the following scenario:

    • SecureXL is enabled
    • Traffic is sent through Security Gateway with Multicast Source IP address and Unicast Destination IP address
Cause

Flow of events:

  1. Source machine sends traffic to Destination machine (with Multicast Source IP address and Unicast Destination IP address)
  2. Traffic passes through Security Gateway, which offloads this connection to SecureXL
  3. Destination machine replies to Source machine (with Unicast Source IP address and Multicast Destination IP address)
  4. SecureXL tries to determine the correct route for this Multicast Destination IP address and fails, which might cause the Security Gateway to crash

Solution
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