[strongSwan] problems with charon in 4.4.1
andreas.steffen at strongswan.org
Mon May 23 23:38:00 CEST 2011
I just analyzed the first part of the alvina.ash.spotify.net log
file and I see that of the 15 initiated IKE_SAs only 4 succeed in
the first round. Are there connection problems to the other 11 hosts,
are some of the peers not online yet or is the computing power of the
hosts so small that they cannot handle more than 4 IKE_SAs without
multiple retransmission rounds?
On 05/23/2011 08:14 PM, Andreas Schuldei wrote:
> the charon log files for these four hosts are available for download here:
> On Mon, May 23, 2011 at 2:46 PM, Andreas Schuldei
> <schuldei+strongswan at spotify.com> wrote:
>> I seem to be experiencing problems with charon in strongswan 4.4.1.
>> One problem is that charon sometimes failes to reinitiate SAs once
>> they expire. I set up a testbed with 17 hosts to reproduce and track
>> down the issue, as it takes some time for it to manifest.
>> since every host has several connections to the other peers in this
>> ipsec setup, it is tricky to see what log entry is caused by which
>> connection. how can single out the log entries from those
>> affected/failing connections? how can i get a verbose status dump from
>> charon showing what it thinks the status is of all the connections it
>> keeps track of?
>> i dont want to attache 16M of log files here. please advice what parts
>> are useful, and i would appreciate tips on how to extract those.
>> the hosts that i currenly see problems with are up:
>> root at taylor:~# fping annalise.ash.spotify.net annmarie.ash.spotify.net
>> annalise.ash.spotify.net is alive
>> annmarie.ash.spotify.net is alive
>> alvina.ash.spotify.net is alive
>> but ipsec statusall has no SA for them. (see ipsec-statusall.txt)
>> please also find attached annalises and taylors ipsec.conf. the other
>> hosts' ipsec.conf is equivalent. there is always one initiator for
>> each connection.
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Andreas Steffen andreas.steffen at strongswan.org
strongSwan - the Linux VPN Solution! www.strongswan.org
Institute for Internet Technologies and Applications
University of Applied Sciences Rapperswil
CH-8640 Rapperswil (Switzerland)
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