Network connectivity over the IPsec tunnel fails in Red Hat Enterprise Linux 6

Solution Unverified - Updated -

Issue

  • Network connectivity over the IPsec tunnel fails in Red Hat Enterprise Linux 6. Openswan establishes the tunnel successfully but command like ping fails. Local machine does not respond for a incoming ping request. Incoming packets can be seen over the tcpdump

Environment

  • Red Hat Enterprise Linux 6
  • ip xfrm to do the manual keying
  • openswan

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