try:

    remote_peer_type=cisco
    esp=aes-sha1;modp1024

Paul

Hey Paul,
Thanks so much for your continued help with this. Unfortunately, I continue to struggle. I found what I believe is an acceptable phase 2 proposal in 3des-sha1, discovered by reviewing the debug logs from a successful tunnel connection from vpnc.

I've tried migrating the configs into two different boxes; a RHEL 6.4 system running openswan-2.6.32-19.el6_3 and a Fedora 20 Live USB running libreswan-3.6-1.fc20. The RHEL box crashes pluto with a signal 11 (again! - even though I think we have an acceptable proposal) and the Fedora 20 box doesn't die, complains of a duplicate packet during quick mode. Oddly enough I end up with an updated /etc/resolv.conf but no IP alias and no routes added.

RHEL logs (this is /var/log/secure and /var/log/messages together so the ipsec messages and daemon crash are shown together timing-wise):

Jul 9 20:15:04 bentz pluto[18134]: "conn" #1: XAUTH: Successfully Authenticated Jul 9 20:15:04 bentz pluto[18134]: "conn" #1: transition from state STATE_XAUTH_I0 to state STATE_XAUTH_I1 Jul 9 20:15:04 bentz pluto[18134]: "conn" #1: STATE_XAUTH_I1: XAUTH client - awaiting CFG_set Jul 9 20:15:04 bentz pluto[18134]: "conn" #1: modecfg: Sending IP request (MODECFG_I1)
Jul  9 20:15:05 bentz pluto[18134]: "conn" #1: received mode cfg reply
Jul 9 20:15:05 bentz pluto[18134]: "conn" #1: setting client address to 192.168.0.79/32 Jul 9 20:15:05 bentz pluto[18134]: "conn" #1: setting ip source address to 192.168.0.79/32 Jul 9 20:15:05 bentz pluto[18134]: "conn" #1: Received IP4 NETMASK 255.255.255.0 Jul 9 20:15:05 bentz pluto[18134]: "conn" #1: Received DNS 10.0.0.20, len=10
Jul  9 20:15:05 bentz pluto[18134]: | Cisco DNS info: 10.0.0.20, len=10
Jul 9 20:15:05 bentz pluto[18134]: "conn" #1: Received DNS 10.0.0.240, len=10 Jul 9 20:15:05 bentz pluto[18134]: | Cisco DNS info: 10.0.0.20 10.0.0.240, len=21 Jul 9 20:15:05 bentz pluto[18134]: "conn" #1: transition from state STATE_MODE_CFG_I1 to state STATE_MAIN_I4 Jul 9 20:15:05 bentz pluto[18134]: "conn" #1: STATE_MAIN_I4: ISAKMP SA established Jul 9 20:15:05 bentz pluto[18134]: "conn" #2: initiating Quick Mode PSK+ENCRYPT+TUNNEL+DONTREKEY+UP+AGGRESSIVE {using isakmp#1 msgid:d45f73bf proposal=3DES(3)_192-SHA1(2)_160 pfsgroup=no-pfs} Jul 9 20:15:05 bentz ipsec__plutorun: /usr/libexec/ipsec/_plutorun: line 250: 18134 Segmentation fault /usr/libexec/ipsec/pluto --nofork --secretsfile /etc/ipsec.secrets --ipsecdir /etc/ipsec.d --use-netkey --uniqueids --nat_traversal --virtual_private oe=off Jul 9 20:15:05 bentz ipsec__plutorun: !pluto failure!: exited with error status 139 (signal 11)
Jul  9 20:15:05 bentz ipsec__plutorun: restarting IPsec after pause...
Jul  9 20:15:15 bentz ipsec_setup: Stopping Openswan IPsec...
Jul 9 20:15:15 bentz ipsec_setup: Removing orphaned /var/run/pluto/pluto.pid:
Jul  9 20:15:15 bentz ipsec_setup: ...Openswan IPsec stopped
Jul 9 20:15:15 bentz ipsec_setup: Starting Openswan IPsec U2.6.32/K2.6.32-358.el6.x86_64...
Jul  9 20:15:15 bentz ipsec_setup: Using NETKEY(XFRM) stack
Jul 9 20:15:15 bentz ipsec_setup: /usr/libexec/ipsec/addconn Non-fips mode set in /proc/sys/crypto/fips_enabled
Jul  9 20:15:15 bentz ipsec__plutorun: Starting Pluto subsystem...
Jul  9 20:15:15 bentz ipsec_setup: ...Openswan IPsec started
Jul  9 20:15:15 bentz ipsec__plutorun: adjusting ipsec.d to /etc/ipsec.d
Jul  9 20:15:15 bentz pluto: adjusting ipsec.d to /etc/ipsec.d
Jul 9 20:15:15 bentz ipsec__plutorun: /usr/libexec/ipsec/addconn Non-fips mode set in /proc/sys/crypto/fips_enabled Jul 9 20:15:15 bentz ipsec__plutorun: /usr/libexec/ipsec/addconn Non-fips mode set in /proc/sys/crypto/fips_enabled Jul 9 20:15:15 bentz ipsec__plutorun: /usr/libexec/ipsec/addconn Non-fips mode set in /proc/sys/crypto/fips_enabled
Jul  9 20:15:16 bentz pluto[18353]: nss directory plutomain: /etc/ipsec.d
Jul  9 20:15:16 bentz pluto[18353]: NSS Initialized
Jul 9 20:15:16 bentz pluto[18353]: Non-fips mode set in /proc/sys/crypto/fips_enabled Jul 9 20:15:16 bentz pluto[18353]: Starting Pluto (Openswan Version 2.6.32; Vendor ID OEhyLdACecfa) pid:18353

Here's the Fedora journalctl -f output:

Jul 09 20:37:26 localhost pluto[2804]: "conn" #1: XAUTH: Successfully Authenticated Jul 09 20:37:26 localhost pluto[2804]: "conn" #1: transition from state STATE_XAUTH_I0 to state STATE_XAUTH_I1 Jul 09 20:37:26 localhost pluto[2804]: "conn" #1: STATE_XAUTH_I1: XAUTH client - awaiting CFG_set Jul 09 20:37:26 localhost pluto[2804]: "conn" #1: modecfg: Sending IP request (MODECFG_I1)
Jul 09 20:37:26 localhost pluto[2804]: "conn" #1: received mode cfg reply
Jul 09 20:37:26 localhost pluto[2804]: "conn" #1: Received IPv4 address: 192.168.0.38/32 Jul 09 20:37:26 localhost pluto[2804]: "conn" #1: setting ip source address to 192.168.0.38/32 Jul 09 20:37:26 localhost pluto[2804]: "conn" #1: Received IP4 NETMASK 255.255.255.0
Jul 09 20:37:26 localhost pluto[2804]: "conn" #1: Received DNS 10.0.0.20
Jul 09 20:37:26 localhost pluto[2804]: | ModeCFG DNS info: 10.0.0.20, len=10
Jul 09 20:37:26 localhost pluto[2804]: "conn" #1: Received DNS 10.0.0.240
Jul 09 20:37:26 localhost pluto[2804]: | ModeCFG DNS info: 10.0.0.20 10.0.0.240, len=21 Jul 09 20:37:26 localhost pluto[2804]: "conn" #1: Received Cisco ModeCFG Domain: conn.com
Jul 09 20:37:26 localhost pluto[2804]: "conn" #1: Received Domain: conn.com
Jul 09 20:37:26 localhost pluto[2804]: "conn" #1: transition from state STATE_MODE_CFG_I1 to state STATE_MAIN_I4 Jul 09 20:37:26 localhost pluto[2804]: "conn" #1: STATE_MAIN_I4: ISAKMP SA established Jul 09 20:37:26 localhost pluto[2804]: "conn" #2: initiating Quick Mode PSK+ENCRYPT+TUNNEL+UP+XAUTH+MODECFGPULL+AGGRESSIVE+IKE_FRAG {using isakmp#1 msgid:2886c6de proposal=3DES(3)_192-SHA1(2)_1...fsgroup=no-pfs} Jul 09 20:37:26 localhost pluto[2804]: "conn" #2: up-client output: updating resolvconf Jul 09 20:37:26 localhost pluto[2804]: "conn" #2: up-client output: Current resolv.conf is generated by Libreswan, and backup resolv.conf already exists, so doing nothing Jul 09 20:37:26 localhost pluto[2804]: "conn" #2: up-client command exited with status 1 Jul 09 20:37:34 localhost pluto[2804]: "conn" #2: discarding duplicate packet; already STATE_QUICK_I1 Jul 09 20:37:36 localhost pluto[2804]: "conn" #2: discarding duplicate packet; already STATE_QUICK_I1 Jul 09 20:37:44 localhost pluto[2804]: "conn" #2: discarding duplicate packet; already STATE_QUICK_I1 Jul 09 20:37:52 localhost pluto[2804]: "conn" #1: ignoring Delete SA payload: PROTO_IPSEC_ESP SA(0x8603a62d) not found (maybe expired) Jul 09 20:37:52 localhost pluto[2804]: "conn" #1: received and ignored empty informational notification payload Jul 09 20:37:52 localhost pluto[2804]: "conn" #1: received Delete SA payload: deleting ISAKMP State #1 Jul 09 20:37:52 localhost pluto[2804]: packet from 198.185.66.15:4500: received and ignored empty informational notification payload

I read that leftxauthserver means rekey=no, so I did add that but it didn't seem to make a difference (it just doesn't 'try' as hard).

My config is (scrubbed):

conn conn
    auto=start
    authby=secret
    left=%defaultroute
    leftid=@vpnusers
    leftxauthclient=yes
    leftmodecfgclient=yes
    leftxauthusername=blentz
    right=1.2.3.4
    rightxauthserver=yes
    rightmodecfgserver=yes
    modecfgpull=yes
    ike=3des-md5;modp1536
    esp=3des-sha1
    rekey=no
    remote_peer_type=cisco
    aggrmode=yes
    pfs=no
    ikev2=no
    sareftrack=no

esp=3des-sha1 appears to have gotten me around the NO_PROPOSAL_CHOSEN problem but I didn't get a whole lot further. It feels like I'm 98% there but this last 2% is kicking my butt.

I saw there was a release today, I might try pulling that down onto the Fedora 20 Live USB system to see if there's something in there that's fixed that I could benefit from.

Any more ideas?


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