SCTP HEARTBEAT ignored on secondary path with iptables firewall

Solution Verified - Updated -

Issue

  • SCTP HEARTBEAT ignored on secondary path with iptables firewall
  • SCTP HEARTBEAT chunk not answered with HEARTBEAT_ACK on secondary path
  • No reply seen to heart beat on second path of SCTP assoc

Environment

  • Red Hat Enterprise Linux 7.1 and earlier
  • Red Hat Enterprise Linux 6
  • SCTP (Streaming Control Transport Protocol)
  • SCTP association with two paths (multihoming/multihomed)

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