Re: [strongSwan] Setting upp strongSwan U5.1.2 <-> Openswan IPsec U2.6.37

abi Wed, 27 May 2015 14:10:30 -0700

Hello Noel.

Looks like I replied to wrong thread, just a misclick. Thank you, I'llread some theory about RSA fields then.


On 27/05/2015 23:14, Noel Kuntze wrote:

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Hello abi,

"key usage" and "extended key usage" are not the same thing.
They are different fields. The pki utility does not have the a setting
to set that field to a value, as far as I can remember.
Openssl itself can do that though. I think the ASA complains about
a missing value in the "key usage" field, not a problem with the
"extended key usage" field.

Mit freundlichen Grüßen/Kind Regards,
Noel Kuntze

GPG Key ID: 0x63EC6658
Fingerprint: 23CA BB60 2146 05E7 7278 6592 3839 298F 63EC 6658

Am 27.05.2015 um 20:53 schrieb abi:

The following flags used for client

         X509v3 extensions:
             X509v3 Authority Key Identifier:
keyid:9F:65:08:93:F3:CC:4E:32:78:37:47:4C:8B:9C:13:DA:A3:94:0D:B0

             X509v3 Subject Alternative Name:
                 DNS:XXXXXXXXXXX
             X509v3 Extended Key Usage:
                 TLS Web Server Authentication, 1.3.6.1.5.5.8.2.2

Thia one for server
         X509v3 extensions:
             X509v3 Authority Key Identifier:
keyid:9F:65:08:93:F3:CC:4E:32:78:37:47:4C:8B:9C:13:DA:A3:94:0D:B0

             X509v3 Subject Alternative Name:
                 DNS:XXXXXXXXXXXX
             X509v3 Extended Key Usage:
                 TLS Web Server Authentication, 1.3.6.1.5.5.8.2.2

Still no luck without ignore-ipsec-keyusage, but now I suspect server cert. ASA 
is complaining about       Certificate validation failed. Peer certificate key 
usage is invalid, serial number: 1577E3E8F6F3AD90, subject name: 
cn=xxxxxxxxxx,o=xxxxxxxx,c=RU.

Server is generated with --flag serverAuth --flag ikeIntermediate --san 
xxxxxxxxx options. I took them from StrongSwan wiki

On 27/05/2015 00:10, Richard Huber wrote:

Hello,

I am trying to connect strongswan with openswan.
It works for 60 seconds, then it all dies until I restart ipsec, then it works 
for another 60 seconds...

$ sudo ipsec status
Security Associations (1 up, 0 connecting):
          hub[1]: ESTABLISHED 17 seconds ago, x[x]...y[y]
          hub{1}:  INSTALLED, TUNNEL, ESP SPIs: ca70896d_i 1d4e67fe_o
          hub{1}:   192.168.45.0/24 === 10.193.160.0/23

Fine, connection is up and running!

After one minute this happens:

$ sudo ipsec status
Security Associations (2 up, 0 connecting):
          hub[2]: ESTABLISHED 11 seconds ago, x[x]...y[y]
          hub[1]: DELETING, x[x]...y[y]
          hub{1}:  INSTALLED, TUNNEL, ESP SPIs: ca70896d_i 1d4e67fe_o
          hub{1}:   192.168.45.0/24 === 10.193.160.0/23

Log entry in auth.log
May 26 22:49:27 toto charon: 08[IKE] y is initiating a Main Mode IKE_SA
May 26 22:49:27 toto charon: 15[IKE] deleting IKE_SA hub[1] between x[x]...y[y]

Then all trafic is dead:

$ sudo ipsec status
Security Associations (1 up, 0 connecting):
          hub[2]: ESTABLISHED 2 minutes ago, x[x]...y[y]

Here are the logs from the openswan server:

$ sudo ipsec auto --status | grep hub
000 "hub": 10.193.160.0/23===y<y>[+S=C]...x<x>[+S=C]===192.168.45.0/24; 
erouted; eroute owner: #76
000 "hub":     myip=unset; hisip=unset;
000 "hub":   ike_life: 3600s; ipsec_life: 28800s; rekey_margin: 540s; 
rekey_fuzz: 100%; keyingtries: 0
000 "hub":   policy: PSK+ENCRYPT+TUNNEL+PFS+UP+IKEv2ALLOW+SAREFTRACK+lKOD+rKOD; 
prio: 23,24; interface: eth0;
000 "hub":   newest ISAKMP SA: #77; newest IPsec SA: #76;
000 "hub":   IKE algorithm newest: AES_CBC_128-SHA1-MODP2048
000 "hub":   ESP algorithms wanted: 3DES(3)_000-MD5(1)_1024; flags=-strict
000 "hub":   ESP algorithms loaded: 3DES(3)_192-MD5(1)_1024
000 "hub":   ESP algorithm newest: 3DES_192-HMAC_MD5; pfsgroup=<Phase1>
000 #98: "hub":500 STATE_QUICK_I1 (sent QI1, expecting QR1); EVENT_RETRANSMIT 
in 6s; lastdpd=-1s(seq in:0 out:0); idle; import:admin initiate
000 #77: "hub":500 STATE_MAIN_I4 (ISAKMP SA established); EVENT_SA_REPLACE in 
1907s; newest ISAKMP; lastdpd=-1s(seq in:0 out:0); idle; import:admin initiate
000 #76: "hub":500 STATE_PARENT_R2 (received v2I2, PARENT SA established); 
EVENT_SA_REPLACE in 27535s; newest IPSEC; eroute owner; nodpd; idle; import:respond to 
stranger

conn hub
        right=y
        rightsubnet=10.193.160.0/23
        left=x
        leftsubnet=192.168.45.0/24
        auto=start
        authby=secret
        esp=3des-md5-1024
        pfs=yes
        #keyexchange = ike

What have I done wrong? :-)

/Richard
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Re: [strongSwan] Setting upp strongSwan U5.1.2 <-> Openswan IPsec U2.6.37

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