[Bug 1523133] [NEW] strongswan vpn does not work

[volker kempter]

Public bug reported:

strongswan vpn does not work with any of the published kernels 4.3
(including 4.3.0-2):

I have already reported this problem some days ago to strongswan.org under ticket #1189:
"I'm using strongswan 5.1.2-0ubuntu8 in lubuntu-16.04 (development) with kernel 4.3.

Setting up VPN with the NetworkManager, I get no error, BUT VPN does not
work; establishing VPN manually with: sudo ipsec restart, sudo ipsec up
..., I get the following in the console:

received netlink error: invalid argument (22).
Unable to install source route for 139.174.7......

But finally it says: "connection "...." established correctly" (as when
using the NetworkManager VPN connection does not work however!!)."

No such problem occur when using the kernel 4.2.0-19 (also 4.2.0-21)
instead: VPN works okay.

The same behaviour is found for lubuntu-15.10 with all kernels 4.3 where
a older version of strongswan is still installed.

I was told by strongswan.org that this is a kernel bug (a patch appears
to exist; see the discussion at #1189).

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: strongswan 5.1.2-0ubuntu6.2
ProcVersionSignature: Ubuntu 4.3.0-2.11-generic 4.3.0
Uname: Linux 4.3.0-2-generic i686
ApportVersion: 2.19.1-0ubuntu5
Architecture: i386
CurrentDesktop: LXDE
Date: Sat Dec  5 17:22:51 2015
InstallationDate: Installed on 2014-02-12 (660 days ago)
InstallationMedia: Lubuntu 13.10 "Saucy Salamander" - Release i386 (20131016.1)
PackageArchitecture: all
SourcePackage: strongswan
UpgradeStatus: Upgraded to wily on 2015-10-09 (57 days ago)

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


** Tags: apport-bug i386 wily

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Title:
  strongswan vpn does not work

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