[strongSwan] Problem with static ip on Windows IKEv2

Sun Mar 12 01:24:09 CET 2017

On 10.03.2017 08:46, Daniel wrote:
> 
>> El 9 mar 2017, a las 12:16, Noel Kuntze <noel at familie-kuntze.de <mailto:noel at familie-kuntze.de>> escribió:
>>
>> iOS:
>>> Mar 09 11:38:08 900333e2e8f1 charon[18975]: 12[ENC] parsed INFORMATIONAL request 6 [ D ]
>>
>> Unrelated to virtual IPs. Check log on iOS for information. Maybe iOS doesn't trust certificates that are issued by Let's Encrypt for IPsec?
>>
>> windows:
>>
>>> Mar 09 11:50:29 900333e2e8f1 charon[18975]: 13[CFG] looking for peer configs matching 176.31.13.185[%any]...79.153.142.222[192.168.222.130]
>>> Mar 09 11:50:29 900333e2e8f1 charon[18975]: 13[CFG] no matching peer config found
>>
>> It's because the ID "192.168.222.130" is not configured in any of your two conns, where the IDs are specified.
>> Don't specify the IDs. Just use a conn for your roadwarriors and add a pool with the leases you need.
>>
>> You can't make this work for Windows (or Mac OSX) with static IDs, because those hosts send their LAN IP as initiator IDs
>> by default and they're hence unpredictable and unrelated to their actual usernames that are used during EAP authentication.
> 
> Would it be possible if I created a single certificate for each Windows?
> 

Even then, you could not match the initiator's ID.

>> On 09.03.2017 11:58, Daniel wrote:
>>> Hi, i have uploaded my logs with your considerations (without sql database) when strongswan starts and example of ios device connection and windows device error connection.
>>>
>>> strongswan_log_load.log -> https://paste.ee/p/GBEJ7
>>> working_ios_connection.log -> https://paste.ee/p/cibrx
>>> windows_cant_connnect.log -> https://paste.ee/p/AnTsJ
>>>
>>> Thaks for your help.
>>>
>>>> El 8 mar 2017, a las 14:22, Noel Kuntze <noel at familie-kuntze.de <mailto:noel at familie-kuntze.de> <mailto:noel at familie-kuntze.de>> escribió:
>>>>
>>>> Logs, please.
>>>>
>>>> On 08.03.2017 08:49, Daniel wrote:
>>>>>
>>>>> I made the change (auto=add) and it still does not work. I'm going to try integrating pools into sqlite and tell them the result.
>>>>>
>>>>> Thank you
>>>>>
>>>>>> El 8 mar 2017, a las 0:32, Noel Kuntze <noel at familie-kuntze.de <mailto:noel at familie-kuntze.de> <mailto:noel at familie-kuntze.de> <mailto:noel at familie-kuntze.de>> escribió:
>>>>>>
>>>>>> Move the "auto=add" out of conn %default into each individual conn you actually need.
>>>>>> The way you're doing it makesno sense.
>>>>>> The proper way to do this is to use a static IP pool backed by an sqlite file or a MySQL server
>>>>>> and to assign the leases based on the identity there.
>>>>>>
>>>>>> The proper way to do this is to 
>>>>>> On 07.03.2017 21:56, Daniel wrote:
>>>>>>> Hi, I have a strongswan 5.3.5 on Ubuntu server. I use this VPN server to iOS devices and Windows 10 laptops.
>>>>>>>
>>>>>>> I will try to explain the problem:
>>>>>>>
>>>>>>> I have ipsec.secrets with user/password EAP auth ex: 
>>>>>>>
>>>>>>>> # This file holds shared secrets or RSA private keys for authentication.
>>>>>>>>
>>>>>>>> # This is private key located at /etc/ipsec.d/private/
>>>>>>>> : RSA privkey.pem
>>>>>>>>
>>>>>>>> # VPN users
>>>>>>>> strike : EAP "12341234"
>>>>>>>> dottas : EAP "45645645"
>>>>>>>
>>>>>>> I have my ipsec.conf assign static ip config to users based on rightid:
>>>>>>>
>>>>>>>> config setup
>>>>>>>>  charondebug = ike 3, cfg 3
>>>>>>>>
>>>>>>>> conn %default
>>>>>>>>
>>>>>>>>  dpdaction=clear
>>>>>>>>  dpddelay=550s
>>>>>>>>  dpdtimeout=72000s
>>>>>>>>  keyexchange=ikev2
>>>>>>>>  auto=add
>>>>>>>>  rekey=no
>>>>>>>>  reauth=no
>>>>>>>>  fragmentation=yes
>>>>>>>>  compress=yes
>>>>>>>>
>>>>>>>>  # left - local (server) side
>>>>>>>>  leftcert=fullchain.pem# Filename of certificate located at /etc/ipsec.d/certs/
>>>>>>>>  leftsendcert=always
>>>>>>>>  # Routes pushed to clients. If you don't have ipv6 then remove ::/0
>>>>>>>>  leftsubnet=0.0.0.0/0
>>>>>>>>
>>>>>>>>  # right - remote (client) side
>>>>>>>>  eap_identity=%identity
>>>>>>>>  # ipv4 subnets that assigns to clients.
>>>>>>>>  rightsourceip=10.8.0.0/24
>>>>>>>>  rightdns=8.8.8.8
>>>>>>>>
>>>>>>>> # Windows Auth CFG
>>>>>>>> conn ikev2-mschapv2
>>>>>>>>  rightauth=eap-mschapv2
>>>>>>>>
>>>>>>>> # Apple Auth CFG
>>>>>>>> conn ikev2-mschapv2-apple
>>>>>>>>  rightauth=eap-mschapv2
>>>>>>>>  leftid=mydomain.com <http://mydomain.com/> <http://mydomain.com/> <http://mydomain.com/> <http://mydomain.com <http://mydomain.com/><http://mydomain.com/> <http://mydomain.com/>>
>>>>>>>>
>>>>>>>> # Static IP configs
>>>>>>>>
>>>>>>>> conn static-ip-for-strike
>>>>>>>>  also="ikev2-mschapv2-apple"
>>>>>>>>  right=%any
>>>>>>>>  rightid=strike
>>>>>>>>  rightsourceip=10.8.0.100/32
>>>>>>>>  auto=add
>>>>>>>>
>>>>>>>> conn static-ip-for-dottas
>>>>>>>>  also="ikev2-mschapv2"
>>>>>>>>  right=%any
>>>>>>>>  rightid=dottas
>>>>>>>>  rightsourceip=10.8.0.33/32
>>>>>>>>  auto=add
>>>>>>>
>>>>>>> All iOS clients connect fine and take static IP but Windows always get an IP address by DHCP pool. If I delete rightsourceip=10.8.0.0/24 field Windows dont recibe any IP address and dont connect.
>>>>>>>
>>>>>>> Some log outputs:
>>>>>>>
>>>>>>> ipsec leases
>>>>>>>
>>>>>>>>
>>>>>>>> Leases in pool '10.8.0.0/24', usage: 0/254, 0 online
>>>>>>>> no matching leases found
>>>>>>>> Leases in pool '10.8.0.33/32', usage: 0/1, 0 online
>>>>>>>> no matching leases found
>>>>>>>> Leases in pool '10.8.0.100/32', usage: 0/1, 0 online
>>>>>>>> no matching leases found
>>>>>>>> ...
>>>>>>>
>>>>>>> journalctl -f -u strongswan
>>>>>>>
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[IKE] IKE_SA ikev2-mschapv2[1] state change: CONNECTING => ESTABLISHED
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[IKE] peer requested virtual IP %any
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG] assigning new lease to 'dottas'
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[IKE] assigning virtual IP 10.8.0.1 to peer 'dottas'
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[IKE] peer requested virtual IP %any6
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[IKE] no virtual IP found for %any6 requested by 'dottas'
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[IKE] building INTERNAL_IP4_DNS attribute
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG] looking for a child config for 0.0.0.0/0 ::/0 === 0.0.0.0/0 ::/0
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG] proposing traffic selectors for us:
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG]  0.0.0.0/0
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG] proposing traffic selectors for other:
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG]  10.8.0.1/32
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG]   candidate "ikev2-mschapv2" with prio 10+2
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG] found matching child config "ikev2-mschapv2" with prio 12
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG] selecting proposal:
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG]   no acceptable ENCRYPTION_ALGORITHM found
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG] selecting proposal:
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG]   no acceptable ENCRYPTION_ALGORITHM found
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG] selecting proposal:
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG]   no acceptable ENCRYPTION_ALGORITHM found
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG] selecting proposal:
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG]   proposal matches
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG] received proposals: ESP:AES_CBC_256/HMAC_SHA1_96/NO_EXT_SEQ, ESP:3DES_CBC/HMAC_SHA1_96/NO_EXT_SEQ
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG] configured proposals: ESP:AES_CBC_128/HMAC_SHA1_96/NO_EXT_SEQ, ESP:3DES_CBC/HMAC_SHA1_96/NO_EXT_SEQ, ESP:AES_CBC_128/AES_CBC_192/AES_CBC_256/3DES_CBC/BLOWFISH_CBC_256/HMAC_SHA1_96/AES_XCBC_96/HMAC_MD5_96/NO_EXT_SEQ
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG] selected proposal: ESP:3DES_CBC/HMAC_SHA1_96/NO_EXT_SEQ
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG] selecting traffic selectors for us:
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG]  config: 0.0.0.0/0, received: 0.0.0.0/0 => match: 0.0.0.0/0
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG]  config: 0.0.0.0/0, received: ::/0 => no match
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG] selecting traffic selectors for other:
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG]  config: 10.8.0.1/32, received: 0.0.0.0/0 => match: 10.8.0.1/32
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[CFG]  config: 10.8.0.1/32, received: ::/0 => no match
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[IKE] CHILD_SA ikev2-mschapv2{1} established with SPIs ccd1079d_i 9a38f558_o and TS 0.0.0.0/0 === 10.8.0.1/32
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[IKE] CHILD_SA ikev2-mschapv2{1} established with SPIs ccd1079d_i 9a38f558_o and TS 0.0.0.0/0 === 10.8.0.1/32
>>>>>>>> Mar 07 21:53:29 900333e2e8f1 charon[5111]: 12[ENC] generating IKE_AUTH response 5 [ AUTH CPRP(ADDR DNS) SA TSi TSr N(MOBIKE_SUP) N(ADD_4_ADDR) N(ADD_4_ADDR) ]
>>>>>>>> ...
>>>>>>>
>>>>>>> ipsec leases
>>>>>>>
>>>>>>>> Leases in pool '10.8.0.0/24', usage: 1/254, 0 online
>>>>>>>>       10.8.0.1   online   'dottas'
>>>>>>>> Leases in pool '10.8.0.33/32', usage: 0/1, 0 online
>>>>>>>> no matching leases found
>>>>>>>> Leases in pool '10.8.0.100/32', usage: 0/1, 0 online
>>>>>>>> no matching leases found
>>>>>>>> ...
>>>>>>>
>>>>>>>
>>>>>>> Any idea to assign static ip address to windows clients?
>>>>>>>
>>>>>>> Thank you.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Users mailing list
>>>>>>> Users at lists.strongswan.org <mailto:Users at lists.strongswan.org> <mailto:Users at lists.strongswan.org> <mailto:Users at lists.strongswan.org>
>>>>>>> https://lists.strongswan.org/mailman/listinfo/users
>>>>>>>
>>>>>>
>>>>>> -- 
>>>>>>
>>>>>> Mit freundlichen Grüßen/Kind Regards,
>>>>>> Noel Kuntze
>>>>>>
>>>>>> GPG Key ID: 0x63EC6658
>>>>>> Fingerprint: 23CA BB60 2146 05E7 7278 6592 3839 298F 63EC 6658
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
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>>>>> https://lists.strongswan.org/mailman/listinfo/users
>>>>>
>>>>
>>>> -- 
>>>>
>>>> Mit freundlichen Grüßen/Kind Regards,
>>>> Noel Kuntze
>>>>
>>>> GPG Key ID: 0x63EC6658
>>>> Fingerprint: 23CA BB60 2146 05E7 7278 6592 3839 298F 63EC 6658
>>>
>>>
>>>
>>> _______________________________________________
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>>>
>>
>> -- 
>>
>> Mit freundlichen Grüßen/Kind Regards,
>> Noel Kuntze
>>
>> GPG Key ID: 0x63EC6658
>> Fingerprint: 23CA BB60 2146 05E7 7278 6592 3839 298F 63EC 6658
> 
> 
> 
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-- 

Mit freundlichen Grüßen/Kind Regards,
Noel Kuntze

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

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