[Bug 1357098] [NEW] StrongSwan incorrectly generating esp packets

[Joe]

Public bug reported:

When pinging a remote node from my Ubuntu 14.04 LTS(GNU/Linux
3.8.13-bone59 armv7l) over an established StrongSwan VPN tunnel, the
remote node sees the generated esp packets (via tcpdump), but does not
respond. I think this is an armhf package issue, because I tested the
configuration, certs and keys using Ubuntu on an x86 and using Raspian
on a RaspberryPi, and the remote node responded as expected, and had esp
packets going both directions. Leading me to guess that this is an ARMv7
specific issue.

Description:    Ubuntu 14.04.1 LTS
Release:        14.04

strongswan:
  Installed: 5.1.2-0ubuntu2
  Candidate: 5.1.2-0ubuntu2
  Version table:
 *** 5.1.2-0ubuntu2 0
        500 http://ports.ubuntu.com/ubuntu-ports/ trusty/main armhf Packages
        100 /var/lib/dpkg/status

** Affects: strongswan (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1357098

Title:
  StrongSwan incorrectly generating esp packets

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