[Openswan Users] NAT-Traversal issue
Ozai
ozai.tien at gmail.com
Fri Nov 8 05:38:24 UTC 2013
Hi Bart,
It works if I connect them directly without NAT GW.The following is my test environment.Client is behind the NAT GW and Seriver is on public network.My kernel linux is embedded linux 2.6.30. thank's.client and server are both the 2.6.38 VPN router.
Client-------NAT GW-------------Server
Best Regards,
Ozai
----- Original Message -----
From: Bart Smink
To: Ozai
Cc: users at lists.openswan.org
Sent: Friday, November 08, 2013 6:23 PM
Subject: Re: [Openswan Users] NAT-Traversal issue
Hi Ozai,
It could be that the router that is in front of the client that is trying to connect is altering the packages with IPsec-passthrough functions. Sometimes this breaks the connection and it is better to turn these features off. You could try to connect directly and see if that works. On the openswan 2.6.38 computer, what kernel version do you run? And which linux distribution? And the NAT is done by which device?
Greetings,
Bart
2013/11/8 Ozai <ozai.tien at gmail.com>
Dear Sirs,
Â
The messages are from server.It seem that client did not transform the IP address.So the server can not check antyhing.It seem the NAT traversal could not work.What kernel feature do I need to enable?or anything else I need to check?
Can someone point me in the right direction?Please help,Thank's.
Â
Best Regards,
Ozai
Â
Nov 8 09:00:09 daemon err ipsec_setup: Starting Openswan IPsec U2.6.38/K2.6.30...
Nov 8 09:00:09 daemon err ipsec_setup: Using NETKEY(XFRM) stack
Nov 8 09:00:11 authpriv err ipsec__plutorun: Starting Pluto subsystem...
Nov 8 09:00:11 user warn syslog: adjusting ipsec.d to /var/ipsec.d
Nov 8 09:00:11 daemon err ipsec__plutorun: adjusting ipsec.d to /var/ipsec.d
Nov 8 09:00:11 authpriv warn pluto[8242]: WARNING: 1DES is enabled
Nov 8 09:00:11 authpriv warn pluto[8242]: LEAK_DETECTIVE support [disabled]
Nov 8 09:00:11 authpriv warn pluto[8242]: OCF support for IKE [disabled]
Nov 8 09:00:11 authpriv warn pluto[8242]: NSS support [disabled]
Nov 8 09:00:11 authpriv warn pluto[8242]: HAVE_STATSD notification support not compiled in
Nov 8 09:00:11 authpriv warn pluto[8242]: Setting NAT-Traversal port-4500 floating to off
Nov 8 09:00:11 authpriv warn pluto[8242]:   port floating activation criteria nat_t=0/port_float=1
Nov 8 09:00:11 authpriv warn pluto[8242]:   NAT-Traversal support [disabled]
Nov 8 09:00:11 authpriv warn pluto[8242]: using /dev/urandom as source of random entropy
Nov 8 09:00:11 daemon err ipsec_setup: ...Openswan IPsec started
Nov 8 09:00:11 authpriv warn pluto[8242]: starting up 1 cryptographic helpers
Nov 8 09:00:11 authpriv warn pluto[8242]: started helper pid=8244 (fd:6)
Nov 8 09:00:11 authpriv warn pluto[8244]: using /dev/urandom as source of random entropy
Nov 8 09:00:13 authpriv warn pluto[8242]: Could not change to directory '/var/ipsec.d/cacerts': No such file or directory
Nov 8 09:00:13 authpriv warn pluto[8242]: Could not change to directory '/var/ipsec.d/aacerts': No such file or directory
Nov 8 09:00:13 authpriv warn pluto[8242]: Could not change to directory '/var/ipsec.d/ocspcerts': No such file or directory
Nov 8 09:00:13 authpriv warn pluto[8242]: Could not change to directory '/var/ipsec.d/crls': 2 No such file or directory
Nov 8 09:00:13 authpriv warn pluto[8242]: added connection description "test"
Nov 8 09:00:13 daemon err ipsec__plutorun: 002 added connection description "test"
Nov 8 09:00:14 authpriv warn pluto[8242]: listening for IKE messages
Nov 8 09:00:14 authpriv warn pluto[8242]: adding interface eth3.1/eth3.1 192.17.200.110:500
Nov 8 09:00:14 authpriv warn pluto[8242]: adding interface br0/br0 192.168.12.254:500
Nov 8 09:00:14 authpriv warn pluto[8242]: adding interface lo/lo 127.0.0.1:500
Nov 8 09:00:14 authpriv warn pluto[8242]: adding interface lo/lo ::1:500
Nov 8 09:00:14 authpriv warn pluto[8242]: loading secrets from "/var/ipsec.secrets"
Nov 8 09:00:15 authpriv warn pluto[8242]: "test": deleting connection
Nov 8 09:00:15 authpriv warn pluto[8242]: added connection description "test"
Nov 8 09:00:15 authpriv warn pluto[8242]: "test" #1: initiating Main Mode
Nov 8 09:00:15 authpriv warn pluto[8242]: "test" #1: ERROR: asynchronous network error report on eth3.1 (sport=500) for message to 192.17.200.79 port 500, complainant 192.17.200.79: Connection refused [errno 146, origin ICMP type 3 code 3 (not
Nov 8 09:00:20 authpriv warn pluto[8242]: packet from 192.17.200:1: received Vendor ID payload [Dead Peer Detection]
Nov 8 09:00:20 authpriv warn pluto[8242]: "test" #2: responding to Main Mode
Nov 8 09:00:20 authpriv warn pluto[8242]: "test" #2: transition from state STATE_MAIN_R0 to state STATE_MAIN_R1
Nov 8 09:00:20 authpriv warn pluto[8242]: "test" #2: STATE_MAIN_R1: sent MR1, expecting MI2
Nov 8 09:00:21 authpriv warn pluto[8242]: "test" #2: transition from state STATE_MAIN_R1 to state STATE_MAIN_R2
Nov 8 09:00:21 authpriv warn pluto[8242]: "test" #2: STATE_MAIN_R2: sent MR2, expecting MI3
Nov 8 09:00:21 authpriv warn pluto[8242]: "test" #2: Main mode peer ID is ID_IPV4_ADDR: '192.168.11.2'
Nov 8 09:00:21 authpriv warn pluto[8242]: "test" #2: no suitable connection for peer '192.168.11.2'
Nov 8 09:00:21 authpriv warn pluto[8242]: "test" #2: sending encrypted notification INVALID_ID_INFORMATION to 192.17.200.79:1
Nov 8 09:00:25 authpriv warn pluto[8242]: "test" #1: ERROR: asynchronous network error report on eth3.1 (sport=500) for message to 192.17.200.79 port 500, complainant 192.17.200.79: Connection refused [errno 146, origin ICMP type 3 code 3 (not
Nov 8 09:00:31 authpriv warn pluto[8242]: "test" #2: no suitable connection for peer '192.168.11.2'
Nov 8 09:00:31 authpriv warn pluto[8242]: "test" #2: sending encrypted notification INVALID_ID_INFORMATION to 192.17.200.79:1
Nov 8 09:00:45 authpriv warn pluto[8242]: "test" #1: ERROR: asynchronous network error report on eth3.1 (sport=500) for message to 192.17.200.79 port 500, complainant 192.17.200.79: Connection refused [errno 146, origin ICMP type 3 code 3 (not
Nov 8 09:00:51 authpriv warn pluto[8242]: "test" #2: no suitable connection for peer '192.168.11.2'
Nov 8 09:00:51 authpriv warn pluto[8242]: "test" #2: sending encrypted notification INVALID_ID_INFORMATION to 192.17.200.79:1
Nov 8 09:01:25 authpriv warn pluto[8242]: "test" #1: ERROR: asynchronous network error report on eth3.1 (sport=500) for message to 192.17.200.79 port 500, complainant 192.17.200.79: Connection refused [errno 146, origin ICMP type 3 code 3 (not
Nov 8 09:01:31 authpriv warn pluto[8242]: packet from 192.17.200.79:1: received Vendor ID payload [Openswan (this version) 2.6.38 ]
Nov 8 09:01:31 authpriv warn pluto[8242]: packet from 192.17.200.79:1: received Vendor ID payload [Dead Peer Detection]
Nov 8 09:01:31 authpriv warn pluto[8242]: "test" #3: responding to Main Mode
Nov 8 09:01:31 authpriv warn pluto[8242]: "test" #3: transition from state STATE_MAIN_R0 to state STATE_MAIN_R1
Nov 8 09:01:31 authpriv warn pluto[8242]: "test" #3: STATE_MAIN_R1: sent MR1, expecting MI2
Nov 8 09:01:31 authpriv warn pluto[8242]: "test" #3: transition from state STATE_MAIN_R1 to state STATE_MAIN_R2
Nov 8 09:01:31 authpriv warn pluto[8242]: "test" #3: STATE_MAIN_R2: sent MR2, expecting MI3
Nov 8 09:01:31 authpriv warn pluto[8242]: "test" #3: Main mode peer ID is ID_IPV4_ADDR: '192.168.11.2'
Nov 8 09:01:31 authpriv warn pluto[8242]: "test" #3: no suitable connection for peer '192.168.11.2'
Nov 8 09:01:31 authpriv warn pluto[8242]: "test" #3: sending encrypted notification INVALID_ID_INFORMATION to 192.17.200.79:1
Nov 8 09:01:41 authpriv warn pluto[8242]: "test" #3: Main mode peer ID is ID_IPV4_ADDR: '192.168.11.2'
Nov 8 09:01:41 authpriv warn pluto[8242]: "test" #3: no suitable connection for peer '192.168.11.2'
Nov 8 09:01:41 authpriv warn pluto[8242]: "test" #3: sending encrypted notification INVALID_ID_INFORMATION to 192.17.200.79:1
Nov 8 09:02:01 authpriv warn pluto[8242]: "test" #3: Main mode peer ID is ID_IPV4_ADDR: '192.168.11.2'
Nov 8 09:02:01 authpriv warn pluto[8242]: "test" #3: no suitable connection for peer '192.168.11.2'
Nov 8 09:02:01 authpriv warn pluto[8242]: "test" #3: sending encrypted notification INVALID_ID_INFORMATION to 192.17.200.79:1
Nov 8 09:02:05 authpriv warn pluto[8242]: "test" #1: ERROR: asynchronous network error report on eth3.1 (sport=500) for message to 192.17.200.79 port 500, complainant 192.17.200.79: Connection refused [errno 146, origin ICMP type 3 code 3 (not
Nov 8 09:02:41 authpriv warn pluto[8242]: packet from 192.17.200.79:1: received Vendor ID payload [Dead Peer Detection]
Nov 8 09:02:41 authpriv warn pluto[8242]: "test" #4: responding to Main Mode
Nov 8 09:02:41 authpriv warn pluto[8242]: "test" #4: transition from state STATE_MAIN_R0 to state STATE_MAIN_R1
Nov 8 09:02:41 authpriv warn pluto[8242]: "test" #4: STATE_MAIN_R1: sent MR1, expecting MI2
Nov 8 09:02:41 authpriv warn pluto[8242]: "test" #3: max number of retransmissions (2) reached STATE_MAIN_R2
Nov 8 09:02:41 authpriv warn pluto[8242]: "test" #4: transition from state STATE_MAIN_R1 to state STATE_MAIN_R2
Nov 8 09:02:41 authpriv warn pluto[8242]: "test" #4: STATE_MAIN_R2: sent MR2, expecting MI3
Nov 8 09:02:41 authpriv warn pluto[8242]: "test" #4: Main mode peer ID is ID_IPV4_ADDR: '192.168.11.2'
Nov 8 09:02:41 authpriv warn pluto[8242]: "test" #4: no suitable connection for peer '192.168.11.2'
Nov 8 09:02:41 authpriv warn pluto[8242]: "test" #4: sending encrypted notification INVALID_ID_INFORMATION to 192.17.200.79:1
Nov 8 09:02:45 authpriv warn pluto[8242]: "test" #1: ERROR: asynchronous network error report on eth3.1 (sport=500) for message to 192.17.200.79 port 500, complainant 192.17.200.79: Connection refused [errno 146, origin ICMP type 3 code 3 (not
Nov 8 09:02:51 authpriv warn pluto[8242]: "test" #4: no suitable connection for peer '192.168.11.2'
Nov 8 09:02:51 authpriv warn pluto[8242]: "test" #4: sending encrypted notification INVALID_ID_INFORMATION to 192.17.200.79:1
Nov 8 09:03:11 authpriv warn pluto[8242]: "test" #4: Main mode peer ID is ID_IPV4_ADDR: '192.168.11.2'
Nov 8 09:03:11 authpriv warn pluto[8242]: "test" #4: no suitable connection for peer '192.168.11.2'
Nov 8 09:03:11 authpriv warn pluto[8242]: "test" #4: sending encrypted notification INVALID_ID_INFORMATION to 192.17.200.79:1
Nov 8 09:03:25 authpriv warn pluto[8242]: "test" #1: max number of retransmissions (5) reached STATE_MAIN_I1. No response (or no acceptable response) to our first IKE message
Nov 8 09:03:25 authpriv warn pluto[8242]: "test" #5: initiating Main Mode to replace #1
Nov 8 09:03:25 authpriv warn pluto[8242]: "test" #5: ERROR: asynchronous network error report on eth3.1 (sport=500) for message to 192.17.200.79 port 500, complainant 192.17.200.79: Connection refused [errno 146, origin ICMP type 3 code 3 (not
Nov 8 09:03:51 authpriv warn pluto[8242]: packet from 192.17.200.79:1: received Vendor ID payload [Openswan (this version) 2.6.38 ]
Nov 8 09:03:51 authpriv warn pluto[8242]: packet from 192.17.200.79:1: received Vendor ID payload [Dead Peer Detection]
Nov 8 09:03:51 authpriv warn pluto[8242]: "test" #6: responding to Main Mode
Nov 8 09:03:51 authpriv warn pluto[8242]: "test" #6: transition from state STATE_MAIN_R0 to state STATE_MAIN_R1
Nov 8 09:03:51 authpriv warn pluto[8242]: "test" #6: STATE_MAIN_R1: sent MR1, expecting MI2
Nov 8 09:03:51 authpriv warn pluto[8242]: "test" #4: max number of retransmissions (2) reached STATE_MAIN_R2
Nov 8 09:03:55 authpriv warn pluto[8242]: "test" #5: ERROR: asynchronous network error report on eth3.1 (sport=500) for message to 192.17.200.79 port 500, complainant 192.17.200.79: Connection refused [errno 146, origin ICMP type 3 code 3 (not
Nov 8 09:04:01 authpriv warn pluto[8242]: "test" #6: STATE_MAIN_R2: sent MR2, expecting MI3
Nov 8 09:04:01 authpriv warn pluto[8242]: "test" #6: Main mode peer ID is ID_IPV4_ADDR: '192.168.11.2'
Nov 8 09:04:01 authpriv warn pluto[8242]: "test" #6: no suitable connection for peer '192.168.11.2'
Nov 8 09:04:01 authpriv warn pluto[8242]: "test" #6: sending encrypted notification INVALID_ID_INFORMATION to 192.17.200.79:1
----- Original Message -----
From: Ozai
To: users at lists.openswan.org
Sent: Tuesday, November 05, 2013 6:17 PM
Subject: NAT-Traversal issue
Hi Sirs,
Â
I setup a openswan VPN client behind the NAT.The test environment is as below.
It did not work.The traffic did not seem to pass to server.
I got a message like "NAT-Traversal: ESPINUDP(1) not supported by kernel for family IPv4".
It seem the NAT Traversal issue.What kernel feature do I need to enable?or anything else I need to check?
Can someone point me in the right direction?Please help,Thank's.
Â
Â
  2.6.38 client--------------------NAT------------------ 2.6.38 Server
192.168.15.x          192.168.11.x           192.17.200.x              192.168.12.x
Â
Â
Â
Nov 5 10:01:11 daemon err ipsec_setup: Starting Openswan IPsec U2.6.38/K2.6.30...
Nov 5 10:01:11 daemon err ipsec_setup: Using NETKEY(XFRM) stack
Nov 5 10:01:13 authpriv err ipsec__plutorun: Starting Pluto subsystem...
Nov 5 10:01:13 user warn syslog: adjusting ipsec.d to /var/ipsec.d
Nov 5 10:01:13 authpriv warn pluto[11706]: WARNING: 1DES is enabled
Nov 5 10:01:13 authpriv warn pluto[11706]: LEAK_DETECTIVE support [disabled]
Nov 5 10:01:13 authpriv warn pluto[11706]: OCF support for IKE [disabled]
Nov 5 10:01:13 authpriv warn pluto[11706]: NSS support [disabled]
Nov 5 10:01:13 authpriv warn pluto[11706]: HAVE_STATSD notification support not compiled in
Nov 5 10:01:13 authpriv warn pluto[11706]: Setting NAT-Traversal port-4500 floating to on
Nov 5 10:01:13 authpriv warn pluto[11706]:   port floating activation criteria nat_t=1/port_float=1
Nov 5 10:01:13 authpriv warn pluto[11706]:   NAT-Traversal support [enabled]
Nov 5 10:01:13 authpriv warn pluto[11706]: using /dev/urandom as source of random entropy
Nov 5 10:01:13 daemon err ipsec__plutorun: adjusting ipsec.d to /var/ipsec.d
Nov 5 10:01:13 authpriv warn pluto[11706]: starting up 1 cryptographic helpers
Nov 5 10:01:13 authpriv warn pluto[11711]: using /dev/urandom as source of random entropy
Nov 5 10:01:13 authpriv warn pluto[11706]: started helper pid=11711 (fd:6)
Nov 5 10:01:13 daemon err ipsec_setup: ...Openswan IPsec started
Nov 5 10:01:15 authpriv warn pluto[11706]: Could not change to directory '/var/ipsec.d/cacerts': No such file or directory
Nov 5 10:01:15 authpriv warn pluto[11706]: Could not change to directory '/var/ipsec.d/aacerts': No such file or directory
Nov 5 10:01:15 authpriv warn pluto[11706]: Could not change to directory '/var/ipsec.d/ocspcerts': No such file or directory
Nov 5 10:01:15 authpriv warn pluto[11706]: Could not change to directory '/var/ipsec.d/crls': 2 No such file or directory
Nov 5 10:01:15 authpriv warn pluto[11706]: added connection description "test"
Nov 5 10:01:15 daemon err ipsec__plutorun: 002 added connection description "test"
Nov 5 10:01:15 authpriv warn pluto[11706]: listening for IKE messages
Nov 5 10:01:15 authpriv warn pluto[11706]: NAT-Traversal: ESPINUDP(1) not supported by kernel for family IPv4
Nov 5 10:01:15 authpriv warn pluto[11706]: adding interface eth0.1/eth0.1 192.168.11.2:500
Nov 5 10:01:15 daemon err ipsec__plutorun: 003 NAT-Traversal: ESPINUDP(1) not supported by kernel for family IPv4
Nov 5 10:01:15 authpriv warn pluto[11706]: NAT-Traversal: ESPINUDP(2) not supported by kernel for family IPv4
Nov 5 10:01:15 authpriv warn pluto[11706]: NAT-Traversal port floating turned off
Nov 5 10:01:15 daemon err ipsec__plutorun: 003 NAT-Traversal: ESPINUDP(2) not supported by kernel for family IPv4
Nov 5 10:01:15 authpriv warn pluto[11706]: NAT-Traversal is turned OFF due to lack of KERNEL support: 0/0
Nov 5 10:01:15 authpriv warn pluto[11706]: adding interface eth0.1/eth0.1 192.168.11.2:4500
Nov 5 10:01:15 authpriv warn pluto[11706]: adding interface br0/br0 192.168.15.254:500
Nov 5 10:01:15 authpriv warn pluto[11706]: adding interface lo/lo 127.0.0.1:500
Nov 5 10:01:15 authpriv warn pluto[11706]: adding interface lo/lo ::1:500
Nov 5 10:01:15 authpriv warn pluto[11706]: loading secrets from "/var/ipsec.secrets"
Nov 5 10:01:17 authpriv warn pluto[11706]: "test": deleting connection
Nov 5 10:01:17 authpriv warn pluto[11706]: added connection description "test"
Nov 5 10:01:18 authpriv warn pluto[11706]: "test" #1: initiating Main Mode
Nov 5 10:01:18 authpriv warn pluto[11706]: "test" #1: received Vendor ID payload [Openswan (this version) 2.6.38 ]
Nov 5 10:01:18 authpriv warn pluto[11706]: "test" #1: received Vendor ID payload [Dead Peer Detection]
Nov 5 10:01:18 authpriv warn pluto[11706]: "test" #1: transition from state STATE_MAIN_I1 to state STATE_MAIN_I2
Nov 5 10:01:18 authpriv warn pluto[11706]: "test" #1: STATE_MAIN_I2: sent MI2, expecting MR2
Nov 5 10:01:18 authpriv warn pluto[11706]: "test" #1: transition from state STATE_MAIN_I2 to state STATE_MAIN_I3
Nov 5 10:01:18 authpriv warn pluto[11706]: "test" #1: STATE_MAIN_I3: sent MI3, expecting MR3
Nov 5 10:01:18 authpriv warn pluto[11706]: "test" #1: ignoring informational payload, type INVALID_ID_INFORMATION msgid=00000000
Nov 5 10:01:18 authpriv warn pluto[11706]: "test" #1: received and ignored informational message
Â
config setup
               nat_traversal=yes
               keep_alive=60
               oe=off
               protostack=netkey
               interfaces=%defaultroute
Â
conn test
               left=192.168.11.2
               leftsubnet=192.168.15.0/24
               rightsubnet=192.168.12.0/24
               connaddrfamily=ipv4
               right=192.17.200.110
               ike=3des-md5;modp1024!
               ikelifetime=480m
               type=tunnel
               salifetime=60m
               phase2alg=3des-hmac_md5!
               pfs=no
               phase2=esp
               keyexchange=ike
               authby=secret
               auto=add
Â
Best Regards,
Ozai
_______________________________________________
Users at lists.openswan.org
https://lists.openswan.org/mailman/listinfo/users
Micropayments: https://flattr.com/thing/38387/IPsec-for-Linux-made-easy
Building and Integrating Virtual Private Networks with Openswan:
http://www.amazon.com/gp/product/1904811256/104-3099591-2946327?n=283155
--
**** DISCLAIMER ****
"This e-mail and any attachment thereto may contain information which is confidential and/or protected by intellectual property rights and are intended for the sole use of the recipient(s) named above.Â
Any use of the information contained herein (including, but not limited to, total or partial reproduction, communication or distribution in any form) by other persons than the designated recipient(s) is prohibited.Â
If you have received this e-mail in error, please notify the sender either by telephone or by e-mail and delete the material from any computer".
Thank you for your cooperation.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openswan.org/pipermail/users/attachments/20131108/5cf4780d/attachment-0001.html>
More information about the Users
mailing list