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    IPSec pfsense <-> Fritzbox broken in 2.2

    Scheduled Pinned Locked Moved IPsec
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    • C
      cmb
      last edited by

      Are you getting "auth failed" as in the original log?

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      • M
        methyphobia
        last edited by

        I can confirm trendchiller observations, 2.2.3 broke my tunnel to a Fritzbox as well.

        pfSense-Log:

        Jul  1 10:35:55 filter charon: 12[KNL] creating acquire job for policy 212.x.x.x/32|/0 === 91.x.x.x/32|/0 with reqid {5}
        Jul  1 10:35:55 filter charon: 11[IKE] <con1000|839>initiating Aggressive Mode IKE_SA con1000[839] to 91.x.x.x
        Jul  1 10:35:55 filter charon: 11[IKE] <con1000|839>initiating Aggressive Mode IKE_SA con1000[839] to 91.x.x.x
        Jul  1 10:35:55 filter charon: 11[ENC] <con1000|839>generating AGGRESSIVE request 0 [ SA KE No ID V V V V V V ]
        Jul  1 10:35:55 filter charon: 11[NET] <con1000|839>sending packet: from 212.x.x.x[500] to 91.x.x.x[500] (344 bytes)
        Jul  1 10:35:55 filter charon: 11[NET] <con1000|839>received packet: from 91.x.x.x[500] to 212.x.x.x[500] (328 bytes)
        Jul  1 10:35:55 filter charon: 11[ENC] <con1000|839>parsed AGGRESSIVE response 0 [ SA KE No ID HASH N((24576)) V V ]
        Jul  1 10:35:55 filter charon: 11[IKE] <con1000|839>received XAuth vendor ID
        Jul  1 10:35:55 filter charon: 11[IKE] <con1000|839>received XAuth vendor ID
        Jul  1 10:35:55 filter charon: 11[IKE] <con1000|839>received DPD vendor ID
        Jul  1 10:35:55 filter charon: 11[IKE] <con1000|839>received DPD vendor ID
        Jul  1 10:35:55 filter charon: 11[IKE] <con1000|839>calculated HASH does not match HASH payload
        Jul  1 10:35:55 filter charon: 11[IKE] <con1000|839>calculated HASH does not match HASH payload
        Jul  1 10:35:55 filter charon: 11[ENC] <con1000|839>generating INFORMATIONAL_V1 request 4262830151 [ HASH N(AUTH_FAILED) ]
        Jul  1 10:35:55 filter charon: 11[NET] <con1000|839>sending packet: from 212.x.x.x[500] to 91.x.x.x[500] (84 bytes)

        Fritzbox logs either Error 0x2020 (hash mismatch in received packet) or 0x2027 (timeout)</con1000|839></con1000|839></con1000|839></con1000|839></con1000|839></con1000|839></con1000|839></con1000|839></con1000|839></con1000|839></con1000|839></con1000|839></con1000|839></con1000|839>

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        • C
          cmb
          last edited by

          What phase 1 identifiers are you using?

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          • M
            methyphobia
            last edited by

            @cmb:

            What phase 1 identifiers are you using?

            On my (pfsense) site the identifier is my public IP address (which is static). The Fritzbox has a dynamic IP, I'm using a dynamic DNS name as it's identifier.
            The settings match on both sides and the tunnel worked flawlessly on 2.2.2 (as well as 2.2.1).

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            • C
              cmb
              last edited by

              Someone who has one, could you get me into your system to review? PM me to arrange details.

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              • T
                trendchiller
                last edited by

                Hi Chris !
                We are using distinguished names as authenticator using a dns-name for both sides.

                Phase 1:
                Key-Exchange: V1
                IPv4
                Mutual-PSK
                aggressive-mode

                3DES, SHA1, DH1, 3600 sec lifetime

                Phase 2:
                Tunnel IPv4
                ESP
                3DES, SHA1, PFS 1, 3600 sec lifetime

                the logs show:
                Jul 3 14:48:31 charon: 11[ENC] <con7000|29>generating INFORMATIONAL_V1 request 1702398447 [ HASH N(AUTH_FAILED) ]
                Jul 3 14:48:31 charon: 11[IKE] <con7000|29>calculated HASH does not match HASH payload
                Jul 3 14:48:31 charon: 11[IKE] <con7000|29>calculated HASH does not match HASH payload</con7000|29></con7000|29></con7000|29>

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                • C
                  cmb
                  last edited by

                  This has been confirmed fixed in 2.2.4 snapshots by someone who has a Fritzbox remote endpoint. Replacing /etc/inc/vpn.inc, or upgrading to latest 2.2.4 from https://snapshots.pfsense.org will fix.

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                  • T
                    trendchiller
                    last edited by

                    I cannot confirm :-(
                    anyone else with thesame persisting problems ?

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                    • F
                      feydin
                      last edited by

                      Replacing the vpn.inc from Github and restarting IPSec indeed fixed the issue for me. Thanks.

                      1 Reply Last reply Reply Quote 0
                      • N
                        netF
                        last edited by

                        @trendchiller:

                        I cannot confirm :-(
                        anyone else with thesame persisting problems ?

                        For me the problem also persists:

                        Fritzbox 7270 with FRITZ!OS 06.05 <-> 2.2.4-RELEASE (i386) built on Sat Jul 25 19:56:41 CDT 2015

                        Fritz-Log:
                        18.08.15 16:03:20 VPN-Fehler: company_vpn, IKE-Error 0x203f

                        PF-Sense-Log:
                        Aug 18 16:12:42 charon: 09[NET] <con2000|466>sending packet: from xx.xx.xx.xx[500] to xx.xx.xx.xx[500] (84 bytes)
                        Aug 18 16:12:42 charon: 09[ENC] <con2000|466>generating INFORMATIONAL_V1 request 1247132810 [ HASH N(AUTH_FAILED) ]
                        Aug 18 16:12:42 charon: 09[IKE] <con2000|466>calculated HASH does not match HASH payload
                        Aug 18 16:12:42 charon: 09[IKE] <con2000|466>calculated HASH does not match HASH payload
                        Aug 18 16:12:42 charon: 09[ENC] <con2000|466>received unknown vendor ID: a2:22:6f:c3:64:50:0f:56:34:ff:77:db:3b:74:f4:1b
                        Aug 18 16:12:42 charon: 09[IKE] <con2000|466>received draft-ietf-ipsec-nat-t-ike-03 vendor ID
                        Aug 18 16:12:42 charon: 09[IKE] <con2000|466>received draft-ietf-ipsec-nat-t-ike-03 vendor ID
                        Aug 18 16:12:42 charon: 09[IKE] <con2000|466>received NAT-T (RFC 3947) vendor ID
                        Aug 18 16:12:42 charon: 09[IKE] <con2000|466>received NAT-T (RFC 3947) vendor ID
                        Aug 18 16:12:42 charon: 09[IKE] <con2000|466>received DPD vendor ID
                        Aug 18 16:12:42 charon: 09[IKE] <con2000|466>received DPD vendor ID
                        Aug 18 16:12:42 charon: 09[IKE] <con2000|466>received XAuth vendor ID
                        Aug 18 16:12:42 charon: 09[IKE] <con2000|466>received XAuth vendor ID
                        Aug 18 16:12:42 charon: 09[ENC] <con2000|466>parsed AGGRESSIVE response 0 [ SA KE No ID HASH N((24576)) V V V V V NAT-D NAT-D ]

                        Any help would be greatly appreciated!

                        Thanks
                        Florian</con2000|466></con2000|466></con2000|466></con2000|466></con2000|466></con2000|466></con2000|466></con2000|466></con2000|466></con2000|466></con2000|466></con2000|466></con2000|466></con2000|466>

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                        • S
                          simonhh
                          last edited by

                          Same for me, FB 7390 FritzOS 6.30 <> pfSense 2.2.4-RELEASE (i386)

                          Did work with previous versions, iirc with 2.1.x, but seems to be broken since 2.2.

                          Hope someone can help!?

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                          • E
                            eCat
                            last edited by

                            We seem to have the same problem here after upgrading to 2.2.4 when connecting to a cisco firewall.
                            Log (descending):

                            charon: 07[NET] <con4000|103>sending packet: from xxx.xxx.xxx.xxx[500] to yyy.yyy.yyy.yyy[500] (92 bytes)
                            charon: 07[ENC] <con4000|103>generating INFORMATIONAL_V1 request 2671423441 [ HASH N(AUTH_FAILED) ]
                            charon: 07[IKE] <con4000|103>calculated HASH does not match HASH payload
                            charon: 07[IKE] <con4000|103>calculated HASH does not match HASH payload
                            charon: 07[ENC] <con4000|103>received unknown vendor ID: 1f:07:f7:0e:aa:65:14:d3:b0:fa:96:54:2a:50:01:00

                            Configuration:
                            Key Exchange Version: 1
                            IPv4
                            Authentication method: Mutual PSK
                            Negotiation mode: Aggressive

                            regards,

                            eCat</con4000|103></con4000|103></con4000|103></con4000|103></con4000|103>

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                            • ?
                              Guest
                              last edited by

                              @eCat
                              Try upgrade to pfSense version 2.2.5 and try it out once more again.

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                              • E
                                eCat
                                last edited by

                                Thanks for the answer, BlueKobold.
                                Guess i'll have to wait for the stable then since we're using the firewall in production environment.

                                greetings (from germany too  ;))

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                                • C
                                  cmb
                                  last edited by

                                  @eCat:

                                  We seem to have the same problem here after upgrading to 2.2.4 when connecting to a cisco firewall.

                                  That's not the same problem, and upgrading to 2.2.5 won't change that. It's likely one of the changes noted here:
                                  https://doc.pfsense.org/index.php/UpgradeGuide#IPsec_Changes

                                  either "Stricter Phase 1 Identifier Validation" or "Phase 2 behavior change with incorrect network addresses" most likely.

                                  Start a new thread describing your issue if neither of those appear to be the case.

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                                  • E
                                    eCat
                                    last edited by

                                    Small Update on the (cisco) issue:
                                    The tunnel works again. We tried several configurations - using the remote hostname (IP did NOT work) as remote gateway and Peer Identifier 'any' finally did the trick.
                                    (Doesn't make much sense for me - however: it works ;))

                                    regards,

                                    eCat

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                                    • R
                                      rtv
                                      last edited by

                                      I get this message daily when pfsense fails to reconnect my IPSec tunnel to the Fritz!Box (7390).
                                      It worked nicely until 2.2.2 in aggressive mode. Now that other bugs are fixed I could finally upgrade to 2.2.6 and switch to main mode.

                                      The initial connection comes up fine. Just after the 24h disconnect the tunnel will not be reestablished and I get the same log entries.

                                      Confusing but maybe helpful: If I use another IPSec connection from my Smartphone (with VPNCilla, inside LAN) to the Fritz!Box then the pfsense tunnel comes up simultaneously  :o

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                                      • ?
                                        Guest
                                        last edited by

                                        The initial connection comes up fine. Just after the 24h disconnect the tunnel will not be reestablished and I get the same log entries.

                                        It seems the ISP cut the line all 24h once, like here in Germany and the IPSec connection is not coming
                                        up proper again.

                                        Confusing but maybe helpful: If I use another IPSec connection from my Smartphone (with VPNCilla, inside LAN) to the Fritz!Box then the pfsense tunnel comes up simultaneously  :o

                                        If there will be then a packet flow through the tunnel it will be perhaps revive the older IPSec VPN tunnel
                                        also again and its up then. Did you try out to get from your PC a link or data flow through the tunnel
                                        by opening the briwser and start connecting some devices on the other side of the VOPN tunnel, or perhaps
                                        another program running on a device in the LAN?

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