Red Hat Bugzilla – Bug 730975
Openswan doesn't work with ike=modp1536 option
Last modified: 2015-03-02 00:26:37 EST
Description of problem: Openswan doesn't work with ike=modp1536 option, which is suggested as one of examples in manual pages of ipsec.conf. Version-Release number of selected component (if applicable): openswan-2.6.32-4.el6_1.1 How reproducible: always Steps to Reproduce: 1.cp ipsec.conf /etc/ipsec.conf version 2.0 config setup protostack=netkey nat_traversal=yes plutostderrlog=/var/log/pluto.log conn testA auto=add authby=secret type=transport left=127.0.0.1 right=127.0.0.1 ike=modp1536 phase2=esp phase2alg=aes-sha1 loopback=yes 2.cp ipsec.secrets /etc/ipsec.secrets : PSK "whatever" 3.ip xfrm state flush 4.service ipsec restart 5.ipsec auto --up testA 6.ip xfrm state Actual results of ipsec auto --up testA: 000 initiating all conns with alias='testA' 021 no connection named "testA" Expected results: Succesfully create an IPsec connection Additional info: I have checked output of tcpdump, packets are unencrypted.
This request was evaluated by Red Hat Product Management for inclusion in the current release of Red Hat Enterprise Linux. Because the affected component is not scheduled to be updated in the current release, Red Hat is unfortunately unable to address this request at this time. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux. If you would like it considered as an exception in the current release, please ask your support representative.
Since RHEL 6.3 External Beta has begun, and this bug remains unresolved, it has been rejected as it is not proposed as exception or blocker. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux.
This request was evaluated by Red Hat Product Management for inclusion in the current release of Red Hat Enterprise Linux. Because the affected component is not scheduled to be updated in the current release, Red Hat is unable to address this request at this time. Red Hat invites you to ask your support representative to propose this request, if appropriate, in the next release of Red Hat Enterprise Linux.
parser should get fixed. workaround: specify the algo/hash as well: ike=aes-sha1;modp1536
Hi, I can confirm it and then I did some tests and found out that there is something wrong in parsing ike option. A lot of more things do not work and end with same error. example: 1, all alone dh ike=modp1536 # fail ike=dh22 # fail ike=dh23 # fail ike=dh24 # fail ... 2, all alone hash ike=md5 # fail ike=sha1 # fail 3, mix dh and hash ike=md5;dh22 # fail ike=sha1;modp1024 # fail ... 4, ike=aes-md5;dh22,modp1024 # fail Man pages says that it should be possible to set these values, ike=modp1536 is as an example in man page ipsec.conf. It seems only values from right can miss. ike=aes-md5;dh22,3des # pass ike=aes-md5,3des # pass ike=aes,3des # pass
I tested it on rhel6.5.z and openswan-2.6.32-27.el6.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2014-1588.html