IPSec Down after Upgrade to 2.3



  • I can confirm what Chris has referenced above.  Prior to seeing his post I did indeed notice that there were two instances of charon running in the process list.  The moment I killed one of the processes the tunnels popped right up.

    I can also confirm that upon reboot there are, once again, two instances running and the problem returns.  Kill the procs and all is well again.



  • @moterpent:

    I can confirm what Chris has referenced above.  Prior to seeing his post I did indeed notice that there were two instances of charon running in the process list.  The moment I killed one of the processes the tunnels popped right up.

    I can also confirm that upon reboot there are, once again, two instances running and the problem returns.  Kill the procs and all is well again.

    Thanks. If you apply this change either manually or using the system patches package, it'll fix.
    https://github.com/pfsense/pfsense/commit/c520e3e322e108351f25a259f6e99d627208871c

    If you could confirm whether that fixes it for you, it'd be appreciated.



  • @cmb:

    @moterpent:

    I can confirm what Chris has referenced above.  Prior to seeing his post I did indeed notice that there were two instances of charon running in the process list.  The moment I killed one of the processes the tunnels popped right up.

    I can also confirm that upon reboot there are, once again, two instances running and the problem returns.  Kill the procs and all is well again.

    Thanks. If you apply this change either manually or using the system patches package, it'll fix.
    https://github.com/pfsense/pfsense/commit/c520e3e322e108351f25a259f6e99d627208871c

    If you could confirm whether that fixes it for you, it'd be appreciated.

    Manually made this change. Looks to have fixed it for me. Nice Job!

    EDIT

    Come back a few hours later, all tunnels down again. Im doing some investigating to see if this is a continuation of previous issues.

    Yeah, still getting the exact same error.

    Apr 15 16:58:56	charon		11[KNL] <con2000|583> unable to delete SAD entry with SPI cef0e6f0
    Apr 15 16:58:56	charon		11[KNL] <con2000|583> error sending to PF_KEY socket: No buffer space available
    Apr 15 16:58:56	charon		11[KNL] <con2000|583> unable to delete SAD entry with SPI cfb16bdd
    Apr 15 16:58:56	charon		11[KNL] <con2000|583> error sending to PF_KEY socket: No buffer space available
    Apr 15 16:58:56	charon		11[IKE] <con2000|583> unable to install inbound and outbound IPsec SA (SAD) in kernel
    Apr 15 16:58:56	charon		11[KNL] <con2000|583> unable to add SAD entry with SPI cef0e6f0
    Apr 15 16:58:56	charon		11[KNL] <con2000|583> error sending to PF_KEY socket: No buffer space available
    Apr 15 16:58:56	charon		11[KNL] <con2000|583> unable to add SAD entry with SPI cfb16bdd
    Apr 15 16:58:56	charon		11[KNL] <con2000|583> error sending to PF_KEY socket: No buffer space available
    Apr 15 16:58:56	charon		11[KNL] <con2000|583> deleting SPI allocation SA failed
    Apr 15 16:58:56	charon		11[KNL] <con2000|583> unable to delete SAD entry with SPI cfb16bdd
    Apr 15 16:58:56	charon		11[KNL] <con2000|583> error sending to PF_KEY socket: No buffer space available</con2000|583></con2000|583></con2000|583></con2000|583></con2000|583></con2000|583></con2000|583></con2000|583></con2000|583></con2000|583></con2000|583></con2000|583>
    

    I stil get it after doing:

    
    killall -9 charon
    killall -9 starter 
    ipsec stop
    ipsec start
    
    

    I double checked my /etc/inc/vpn.inc and it DOES have the changes still there.

    Any suggestions?



  • @fattylewis:

    Any suggestions?

    I'd like to take a look at your system. PM me here, or /msg cmb on Freenode if you do IRC.



  • @cmb:

    @fattylewis:

    Any suggestions?

    I'd like to take a look at your system. PM me here, or /msg cmb on Freenode if you do IRC.

    I have sent you a PM.



  • I have the same issue.

    The fix has been applied but no success.
    I have highlighted CMB_ on irc.



  • fattylewis' issue looks to have been caused by a different problem, openbgpd also seems to be able to trigger that PF_KEY error (even though in his case BGP wasn't doing anything, just running).

    Arendtsen: /msged you on IRC.



  • Just noticed something new.
    A reboot of the server (virtual on esxi) brings up the ipsec tunnels.
    After about eight hours it's seems like they just appear up but there is no SADs or SPDs



  • This sounds like the same issue as I am having here: https://forum.pfsense.org/index.php?topic=108706.0

    I am using the OpenBGPD package as well…

    Since I posted that I am no longer running the beta version but the issue still persists. I will give the patch linked earlier a go to see if it makes any difference for me, if anyone else has any suggested fixes happy to give them a go.



  • @shthead:

    This sounds like the same issue as I am having here: https://forum.pfsense.org/index.php?topic=108706.0

    I am using the OpenBGPD package as well…

    Since I posted that I am no longer running the beta version but the issue still persists. I will give the patch linked earlier a go to see if it makes any difference for me, if anyone else has any suggested fixes happy to give them a go.

    After cmb removed openbgpd (i wasnt actually using it at the time) everything has been fine with my tunnels.



  • Unfortunately I need OpenBGPD as I advertise prefixes that need to be routed over the IPSEC tunnels to the pfSense server. Its both too hard to keep track of which prefixes go where and much easier from a failover/traffic engineering point of view to not use it for my case. In this particular situation I also advertise the prefixes in the local office network to the pfSense server from the switches as there are quite a few different networks. I hope that there is a work around at some point, I would be happy to be a guinea pig for it.



  • @shthead:

    Unfortunately I need OpenBGPD as I advertise prefixes that need to be routed over the IPSEC tunnels to the pfSense server. Its both too hard to keep track of which prefixes go where and much easier from a failover/traffic engineering point of view to not use it for my case. In this particular situation I also advertise the prefixes in the local office network to the pfSense server from the switches as there are quite a few different networks. I hope that there is a work around at some point, I would be happy to be a guinea pig for it.

    This is exactly why i am so glad i updated my home system before doing my office router…

    I guess best you can do is see what cmb says :(



  • Hello!

    We have the same problem, applied the patch, however as we use OpenBGPD for AWS, ALL the IPSEC vpn's drop.

    The only way we fix it at the moment is to reboot the Firewall (this is not ideal).

    Any suggestions?

    Thanks



  • Running into what appears to be the same issue.  I've installed the patch that CMB put up and I'm testing it out.  I don't IPsec a lot, but I'll see about trying to do some more in the next couple days to see if this remains fixed.  Luckily I have an OpenVPN connection that I use for other services that I can get back in and stop/start the IPSec service.  Below is a sanitized version of the error message:

    
    Apr 18 17:03:02	charon		07[NET] <328> received packet: from x.x.x.x[63521] to y.y.y.y[500] (300 bytes)
    Apr 18 17:03:02	charon		07[ENC] <328> parsed IKE_SA_INIT request 0 [ SA KE No N(REDIR_SUP) N(NATD_S_IP) N(NATD_D_IP) N(FRAG_SUP) ]
    Apr 18 17:03:02	charon		07[IKE] <328> x.x.x.x is initiating an IKE_SA
    Apr 18 17:03:02	charon		07[IKE] <328> remote host is behind NAT
    Apr 18 17:03:02	charon		07[IKE] <328> sending cert request for "C=US, ST=Wisconsin, L=Madison, O=Xinu, E=zach@xinu.io, CN=dd13-CA"
    Apr 18 17:03:02	charon		07[ENC] <328> generating IKE_SA_INIT response 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) CERTREQ N(FRAG_SUP) N(MULT_AUTH) ]
    Apr 18 17:03:02	charon		07[NET] <328> sending packet: from y.y.y.y[500] to x.x.x.x[63521] (341 bytes)
    Apr 18 17:03:02	charon		07[NET] <328> received packet: from x.x.x.x[4244] to y.y.y.y[4500] (332 bytes)
    Apr 18 17:03:02	charon		07[ENC] <328> parsed IKE_AUTH request 1 [ IDi N(INIT_CONTACT) N(MOBIKE_SUP) IDr CPRQ(ADDR DHCP DNS MASK ADDR6 DHCP6 DNS6) N(ESP_TFC_PAD_N) N(NON_FIRST_FRAG) SA TSi TSr ]
    Apr 18 17:03:02	charon		07[CFG] <328> looking for peer configs matching y.y.y.y[xxx.dyndns-web.com]...x.x.x.x[172.20.10.9]
    Apr 18 17:03:02	charon		07[CFG] <con1|328>selected peer config 'con1'
    Apr 18 17:03:02	charon		07[IKE] <con1|328>initiating EAP_IDENTITY method (id 0x00)
    Apr 18 17:03:02	charon		07[IKE] <con1|328>received ESP_TFC_PADDING_NOT_SUPPORTED, not using ESPv3 TFC padding
    Apr 18 17:03:02	charon		07[IKE] <con1|328>peer supports MOBIKE
    Apr 18 17:03:02	charon		07[IKE] <con1|328>authentication of 'xxx.dyndns-web.com' (myself) with RSA signature successful
    Apr 18 17:03:02	charon		07[IKE] <con1|328>sending end entity cert "C=US, ST=Wisconsin, L=Madison, O=Xinu, E=zach@xinu.io, CN=xxx.dyndns-web.com"
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 1 [ IDr CERT AUTH EAP/REQ/ID ]
    Apr 18 17:03:02	charon		07[ENC] <con1|328>splitting IKE message with length of 1596 bytes into 4 fragments
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 1 [ EF(1/4) ]
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 1 [ EF(2/4) ]
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 1 [ EF(3/4) ]
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 1 [ EF(4/4) ]
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (544 bytes)
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (544 bytes)
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (544 bytes)
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (144 bytes)
    Apr 18 17:03:02	charon		07[NET] <con1|328>received packet: from x.x.x.x[4244] to y.y.y.y[4500] (84 bytes)
    Apr 18 17:03:02	charon		07[ENC] <con1|328>parsed IKE_AUTH request 2 [ EAP/RES/ID ]
    Apr 18 17:03:02	charon		07[IKE] <con1|328>received EAP identity 'remoteuser@domain.io'
    Apr 18 17:03:02	charon		07[IKE] <con1|328>initiating EAP_MSCHAPV2 method (id 0x14)
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 2 [ EAP/REQ/MSCHAPV2 ]
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (100 bytes)
    Apr 18 17:03:02	charon		07[NET] <con1|328>received packet: from x.x.x.x[4244] to y.y.y.y[4500] (140 bytes)
    Apr 18 17:03:02	charon		07[ENC] <con1|328>parsed IKE_AUTH request 3 [ EAP/RES/MSCHAPV2 ]
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 3 [ EAP/REQ/MSCHAPV2 ]
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (132 bytes)
    Apr 18 17:03:02	charon		07[NET] <con1|328>received packet: from x.x.x.x[4244] to y.y.y.y[4500] (68 bytes)
    Apr 18 17:03:02	charon		07[ENC] <con1|328>parsed IKE_AUTH request 4 [ EAP/RES/MSCHAPV2 ]
    Apr 18 17:03:02	charon		07[IKE] <con1|328>EAP method EAP_MSCHAPV2 succeeded, MSK established
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 4 [ EAP/SUCC ]
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (68 bytes)
    Apr 18 17:03:02	charon		07[NET] <con1|328>received packet: from x.x.x.x[4244] to y.y.y.y[4500] (84 bytes)
    Apr 18 17:03:02	charon		07[ENC] <con1|328>parsed IKE_AUTH request 5 [ AUTH ]
    Apr 18 17:03:02	charon		07[IKE] <con1|328>authentication of '172.20.10.9' with EAP successful
    Apr 18 17:03:02	charon		07[IKE] <con1|328>authentication of 'xxx.dyndns-web.com' (myself) with EAP
    Apr 18 17:03:02	charon		07[IKE] <con1|328>IKE_SA con1[328] established between y.y.y.y[xxx.dyndns-web.com]...x.x.x.x[172.20.10.9]
    Apr 18 17:03:02	charon		07[IKE] <con1|328>scheduling reauthentication in 28169s
    Apr 18 17:03:02	charon		07[IKE] <con1|328>maximum IKE_SA lifetime 28709s
    Apr 18 17:03:02	charon		07[IKE] <con1|328>peer requested virtual IP %any
    Apr 18 17:03:02	charon		07[CFG] <con1|328>reassigning offline lease to 'remoteuser@domain.io'
    Apr 18 17:03:02	charon		07[IKE] <con1|328>assigning virtual IP 10.10.10.1 to peer 'remoteuser@domain.io'
    Apr 18 17:03:02	charon		07[IKE] <con1|328>peer requested virtual IP %any6
    Apr 18 17:03:02	charon		07[IKE] <con1|328>no virtual IP found for %any6 requested by 'remoteuser@domain.io'
    Apr 18 17:03:02	charon		07[KNL] <con1|328>error sending to PF_KEY socket: No buffer space available
    Apr 18 17:03:02	charon		07[KNL] <con1|328>unable to delete SAD entry with SPI cd6f355a
    Apr 18 17:03:02	charon		07[KNL] <con1|328>deleting SPI allocation SA failed
    Apr 18 17:03:02	charon		07[KNL] <con1|328>error sending to PF_KEY socket: No buffer space available
    Apr 18 17:03:02	charon		07[KNL] <con1|328>unable to add SAD entry with SPI cd6f355a
    Apr 18 17:03:02	charon		07[KNL] <con1|328>error sending to PF_KEY socket: No buffer space available
    Apr 18 17:03:02	charon		07[KNL] <con1|328>unable to add SAD entry with SPI 0b91cd64
    Apr 18 17:03:02	charon		07[IKE] <con1|328>unable to install inbound and outbound IPsec SA (SAD) in kernel
    Apr 18 17:03:02	charon		07[IKE] <con1|328>failed to establish CHILD_SA, keeping IKE_SA
    Apr 18 17:03:02	charon		07[KNL] <con1|328>error sending to PF_KEY socket: No buffer space available
    Apr 18 17:03:02	charon		07[KNL] <con1|328>unable to delete SAD entry with SPI cd6f355a
    Apr 18 17:03:02	charon		07[KNL] <con1|328>error sending to PF_KEY socket: No buffer space available
    Apr 18 17:03:02	charon		07[KNL] <con1|328>unable to delete SAD entry with SPI 0b91cd64
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 5 [ AUTH CPRP(ADDR DNS DNS DNS U_DEFDOM U_SPLITDNS) N(AUTH_LFT) N(MOBIKE_SUP) N(ADD_4_ADDR) N(ADD_4_ADDR) N(ADD_4_ADDR) N(NO_PROP) ]
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (212 bytes)
    Apr 18 17:03:02	charon		07[NET] <con1|328>received packet: from x.x.x.x[4244] to y.y.y.y[4500] (68 bytes)
    Apr 18 17:03:02	charon		07[ENC] <con1|328>parsed INFORMATIONAL request 6 [ D ]
    Apr 18 17:03:02	charon		07[IKE] <con1|328>received DELETE for IKE_SA con1[328]
    Apr 18 17:03:02	charon		07[IKE] <con1|328>deleting IKE_SA con1[328] between y.y.y.y[xxx.dyndns-web.com]...x.x.x.x[172.20.10.9]
    Apr 18 17:03:02	charon		07[IKE] <con1|328>IKE_SA deleted
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating INFORMATIONAL response 6 [ ]
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (60 bytes)
    Apr 18 17:03:02	charon		07[CFG] <con1|328>lease 10.10.10.1 by 'remoteuser@domain.io' went offline</con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328> 
    


  • For me I can confirm that removing the OpenBGPD package resolves the problem with the tunnels - IPSEC works fine for me after that. Unfortunately I require OpenBGPD though, so its not a real fix for my situation. Does anyone have any other ideas of what to try?



  • I have now removed openbgpd and rebooted.
    Keeping an eye on it the next couple of days.



  • @vsxi-13:

    Running into what appears to be the same issue.  I've installed the patch that CMB put up and I'm testing it out.  I don't IPsec a lot, but I'll see about trying to do some more in the next couple days to see if this remains fixed.  Luckily I have an OpenVPN connection that I use for other services that I can get back in and stop/start the IPSec service.  Below is a sanitized version of the error message:

    
    Apr 18 17:03:02	charon		07[NET] <328> received packet: from x.x.x.x[63521] to y.y.y.y[500] (300 bytes)
    Apr 18 17:03:02	charon		07[ENC] <328> parsed IKE_SA_INIT request 0 [ SA KE No N(REDIR_SUP) N(NATD_S_IP) N(NATD_D_IP) N(FRAG_SUP) ]
    Apr 18 17:03:02	charon		07[IKE] <328> x.x.x.x is initiating an IKE_SA
    Apr 18 17:03:02	charon		07[IKE] <328> remote host is behind NAT
    Apr 18 17:03:02	charon		07[IKE] <328> sending cert request for "C=US, ST=Wisconsin, L=Madison, O=Xinu, E=zach@xinu.io, CN=dd13-CA"
    Apr 18 17:03:02	charon		07[ENC] <328> generating IKE_SA_INIT response 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) CERTREQ N(FRAG_SUP) N(MULT_AUTH) ]
    Apr 18 17:03:02	charon		07[NET] <328> sending packet: from y.y.y.y[500] to x.x.x.x[63521] (341 bytes)
    Apr 18 17:03:02	charon		07[NET] <328> received packet: from x.x.x.x[4244] to y.y.y.y[4500] (332 bytes)
    Apr 18 17:03:02	charon		07[ENC] <328> parsed IKE_AUTH request 1 [ IDi N(INIT_CONTACT) N(MOBIKE_SUP) IDr CPRQ(ADDR DHCP DNS MASK ADDR6 DHCP6 DNS6) N(ESP_TFC_PAD_N) N(NON_FIRST_FRAG) SA TSi TSr ]
    Apr 18 17:03:02	charon		07[CFG] <328> looking for peer configs matching y.y.y.y[xxx.dyndns-web.com]...x.x.x.x[172.20.10.9]
    Apr 18 17:03:02	charon		07[CFG] <con1|328>selected peer config 'con1'
    Apr 18 17:03:02	charon		07[IKE] <con1|328>initiating EAP_IDENTITY method (id 0x00)
    Apr 18 17:03:02	charon		07[IKE] <con1|328>received ESP_TFC_PADDING_NOT_SUPPORTED, not using ESPv3 TFC padding
    Apr 18 17:03:02	charon		07[IKE] <con1|328>peer supports MOBIKE
    Apr 18 17:03:02	charon		07[IKE] <con1|328>authentication of 'xxx.dyndns-web.com' (myself) with RSA signature successful
    Apr 18 17:03:02	charon		07[IKE] <con1|328>sending end entity cert "C=US, ST=Wisconsin, L=Madison, O=Xinu, E=zach@xinu.io, CN=xxx.dyndns-web.com"
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 1 [ IDr CERT AUTH EAP/REQ/ID ]
    Apr 18 17:03:02	charon		07[ENC] <con1|328>splitting IKE message with length of 1596 bytes into 4 fragments
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 1 [ EF(1/4) ]
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 1 [ EF(2/4) ]
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 1 [ EF(3/4) ]
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 1 [ EF(4/4) ]
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (544 bytes)
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (544 bytes)
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (544 bytes)
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (144 bytes)
    Apr 18 17:03:02	charon		07[NET] <con1|328>received packet: from x.x.x.x[4244] to y.y.y.y[4500] (84 bytes)
    Apr 18 17:03:02	charon		07[ENC] <con1|328>parsed IKE_AUTH request 2 [ EAP/RES/ID ]
    Apr 18 17:03:02	charon		07[IKE] <con1|328>received EAP identity 'remoteuser@domain.io'
    Apr 18 17:03:02	charon		07[IKE] <con1|328>initiating EAP_MSCHAPV2 method (id 0x14)
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 2 [ EAP/REQ/MSCHAPV2 ]
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (100 bytes)
    Apr 18 17:03:02	charon		07[NET] <con1|328>received packet: from x.x.x.x[4244] to y.y.y.y[4500] (140 bytes)
    Apr 18 17:03:02	charon		07[ENC] <con1|328>parsed IKE_AUTH request 3 [ EAP/RES/MSCHAPV2 ]
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 3 [ EAP/REQ/MSCHAPV2 ]
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (132 bytes)
    Apr 18 17:03:02	charon		07[NET] <con1|328>received packet: from x.x.x.x[4244] to y.y.y.y[4500] (68 bytes)
    Apr 18 17:03:02	charon		07[ENC] <con1|328>parsed IKE_AUTH request 4 [ EAP/RES/MSCHAPV2 ]
    Apr 18 17:03:02	charon		07[IKE] <con1|328>EAP method EAP_MSCHAPV2 succeeded, MSK established
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 4 [ EAP/SUCC ]
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (68 bytes)
    Apr 18 17:03:02	charon		07[NET] <con1|328>received packet: from x.x.x.x[4244] to y.y.y.y[4500] (84 bytes)
    Apr 18 17:03:02	charon		07[ENC] <con1|328>parsed IKE_AUTH request 5 [ AUTH ]
    Apr 18 17:03:02	charon		07[IKE] <con1|328>authentication of '172.20.10.9' with EAP successful
    Apr 18 17:03:02	charon		07[IKE] <con1|328>authentication of 'xxx.dyndns-web.com' (myself) with EAP
    Apr 18 17:03:02	charon		07[IKE] <con1|328>IKE_SA con1[328] established between y.y.y.y[xxx.dyndns-web.com]...x.x.x.x[172.20.10.9]
    Apr 18 17:03:02	charon		07[IKE] <con1|328>scheduling reauthentication in 28169s
    Apr 18 17:03:02	charon		07[IKE] <con1|328>maximum IKE_SA lifetime 28709s
    Apr 18 17:03:02	charon		07[IKE] <con1|328>peer requested virtual IP %any
    Apr 18 17:03:02	charon		07[CFG] <con1|328>reassigning offline lease to 'remoteuser@domain.io'
    Apr 18 17:03:02	charon		07[IKE] <con1|328>assigning virtual IP 10.10.10.1 to peer 'remoteuser@domain.io'
    Apr 18 17:03:02	charon		07[IKE] <con1|328>peer requested virtual IP %any6
    Apr 18 17:03:02	charon		07[IKE] <con1|328>no virtual IP found for %any6 requested by 'remoteuser@domain.io'
    Apr 18 17:03:02	charon		07[KNL] <con1|328>error sending to PF_KEY socket: No buffer space available
    Apr 18 17:03:02	charon		07[KNL] <con1|328>unable to delete SAD entry with SPI cd6f355a
    Apr 18 17:03:02	charon		07[KNL] <con1|328>deleting SPI allocation SA failed
    Apr 18 17:03:02	charon		07[KNL] <con1|328>error sending to PF_KEY socket: No buffer space available
    Apr 18 17:03:02	charon		07[KNL] <con1|328>unable to add SAD entry with SPI cd6f355a
    Apr 18 17:03:02	charon		07[KNL] <con1|328>error sending to PF_KEY socket: No buffer space available
    Apr 18 17:03:02	charon		07[KNL] <con1|328>unable to add SAD entry with SPI 0b91cd64
    Apr 18 17:03:02	charon		07[IKE] <con1|328>unable to install inbound and outbound IPsec SA (SAD) in kernel
    Apr 18 17:03:02	charon		07[IKE] <con1|328>failed to establish CHILD_SA, keeping IKE_SA
    Apr 18 17:03:02	charon		07[KNL] <con1|328>error sending to PF_KEY socket: No buffer space available
    Apr 18 17:03:02	charon		07[KNL] <con1|328>unable to delete SAD entry with SPI cd6f355a
    Apr 18 17:03:02	charon		07[KNL] <con1|328>error sending to PF_KEY socket: No buffer space available
    Apr 18 17:03:02	charon		07[KNL] <con1|328>unable to delete SAD entry with SPI 0b91cd64
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating IKE_AUTH response 5 [ AUTH CPRP(ADDR DNS DNS DNS U_DEFDOM U_SPLITDNS) N(AUTH_LFT) N(MOBIKE_SUP) N(ADD_4_ADDR) N(ADD_4_ADDR) N(ADD_4_ADDR) N(NO_PROP) ]
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (212 bytes)
    Apr 18 17:03:02	charon		07[NET] <con1|328>received packet: from x.x.x.x[4244] to y.y.y.y[4500] (68 bytes)
    Apr 18 17:03:02	charon		07[ENC] <con1|328>parsed INFORMATIONAL request 6 [ D ]
    Apr 18 17:03:02	charon		07[IKE] <con1|328>received DELETE for IKE_SA con1[328]
    Apr 18 17:03:02	charon		07[IKE] <con1|328>deleting IKE_SA con1[328] between y.y.y.y[xxx.dyndns-web.com]...x.x.x.x[172.20.10.9]
    Apr 18 17:03:02	charon		07[IKE] <con1|328>IKE_SA deleted
    Apr 18 17:03:02	charon		07[ENC] <con1|328>generating INFORMATIONAL response 6 [ ]
    Apr 18 17:03:02	charon		07[NET] <con1|328>sending packet: from y.y.y.y[4500] to x.x.x.x[4244] (60 bytes)
    Apr 18 17:03:02	charon		07[CFG] <con1|328>lease 10.10.10.1 by 'remoteuser@domain.io' went offline</con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328></con1|328> 
    

    Issue reoccurred for me today again.  Had to connect back through OpenVPN tunnel and manually stop/start the IPSec service in order to authenticate via IPSec from my Macbook air.  It doesn't appear the fix from earlier is working for me on a permanent basis.



  • There are two separate issues here with the same symptom. The starting twice problem is fixed by what I posted earlier in the thread. The issue with openbgpd causing that same PF_KEY error doesn't have a known cause or solution yet. I'm attempting to replicate that one.



  • cmb, if you would like access to my pfSense server that has the OpenBGPD issue again let me know and I will message you the details.



  • I'm not running OpenBGPD.  I'll review, but I'm pretty sure I applied that patch successfully utilizing the patch package utility…

    Edit:  It's definitely installed.  I navigated out to the file in question to check for the additions that were added and they're there.

    I haven't done a full reboot, would that have any chance of affecting the application of the fix?



  • @vsxi-13:

    I'm not running OpenBGPD.  I'll review, but I'm pretty sure I applied that patch successfully utilizing the patch package utility…

    Edit:  It's definitely installed.  I navigated out to the file in question to check for the additions that were added and they're there.

    I haven't done a full reboot, would that have any chance of affecting the application of the fix?

    You have to either manually kill off the duplicate instances of strongswan (ipsec and charon processes), or reboot after applying that. That just prevents the problem circumstance from happening again.



  • @cmb:

    @vsxi-13:

    I'm not running OpenBGPD.  I'll review, but I'm pretty sure I applied that patch successfully utilizing the patch package utility…

    Edit:  It's definitely installed.  I navigated out to the file in question to check for the additions that were added and they're there.

    I haven't done a full reboot, would that have any chance of affecting the application of the fix?

    You have to either manually kill off the duplicate instances of strongswan (ipsec and charon processes), or reboot after applying that. That just prevents the problem circumstance from happening again.

    I'm going to keep an eye on it.  I rebooted today, however I also just rebuilt my pfSense and am running it virtually now in VMWare with essentially the same configuration.



  • @vsxi-13:

    @cmb:

    @vsxi-13:

    I'm not running OpenBGPD.  I'll review, but I'm pretty sure I applied that patch successfully utilizing the patch package utility…

    Edit:  It's definitely installed.  I navigated out to the file in question to check for the additions that were added and they're there.

    I haven't done a full reboot, would that have any chance of affecting the application of the fix?

    You have to either manually kill off the duplicate instances of strongswan (ipsec and charon processes), or reboot after applying that. That just prevents the problem circumstance from happening again.

    I'm going to keep an eye on it.  I rebooted today, however I also just rebuilt my pfSense and am running it virtually now in VMWare with essentially the same configuration.

    This would have been a great weekend to test this, however my Macbook has decided that it doesn't want to run IKEv2 anymore…

    
    Apr 22 07:34:01 mba nesessionmanager[427]: NESMIKEv2VPNSession[xxxx.dyndns-web.com:4B453608-183B-4727-B69F-DB98737FCCD7]: Received a start command from SystemUIServer[239]
    Apr 22 07:34:01 mba nesessionmanager[427]: NESMIKEv2VPNSession[xxxx.dyndns-web.com:4B453608-183B-4727-B69F-DB98737FCCD7]: status changed to connecting
    Apr 22 07:34:01 mba nesessionmanager[427]: Failed to find the VPN app for plugin type com.apple.neplugin.IKEv2
    Apr 22 07:34:01 mba neagent[926]: IKEv2 Plugin: ikev2_dns_callback: Error -65554
    Apr 22 07:34:02 mba kernel[0]: ipsec_ctl_connect: creating interface ipsec0
    Apr 22 07:34:02 mba configd[51]: network changed
    Apr 22 07:34:04 mba neagent[926]: MSCHAPv2 Error = 691, Retry = 1, Version = 0
    Apr 22 07:34:04 mba neagent[926]: Failed to process IKE Auth (EAP) packet
    Apr 22 07:34:04 mba neagent[926]: BUG in libdispatch client: kevent[EVFILT_READ] delete: "Bad file descriptor" - 0x9
    Apr 22 07:34:04 mba nesessionmanager[427]: NESMIKEv2VPNSession[xxxx.dyndns-web.com:4B453608-183B-4727-B69F-DB98737FCCD7]: status changed to disconnecting
    Apr 22 07:34:04 mba kernel[0]: SIOCPROTODETACH_IN6: ipsec0 error=6
    Apr 22 07:34:04 mba nesessionmanager[427]: NESMIKEv2VPNSession[xxxx.dyndns-web.com:4B453608-183B-4727-B69F-DB98737FCCD7]: status changed to disconnected, last stop reason $
    Apr 22 07:34:04 mba configd[51]: network changed
    Apr 22 07:34:04 mba symptomsd[422]: nw_interface_get_agents SIOCGIFAGENTIDS failed for interface "ipsec0" (index 8, type other): [6] Device not configured
    
    

    Of course there a good amount of posts showing this as a problem on google, but no real resolutions…  My personal and work iPhone connect without a hitch, so it's definitely not pfSense side :(



  • I am in the same boat.  I have two pfSense boxes in an HA pair running 2.3, with BGP and an IPSec VPN.  I'm happy to help test whatever patch etc as needed.



  • Can now confirm that after removing openbgpd I havn't have had any IPSEC tunnels inactive.



  • Hi All ,

    I am a newbie in pfsense , i have recently updated on pfsense 2.3 (AMD 64) ,all the things were working like a charm including IPSEC tunnels before installing OpenBgpd, as per our requirement i have installed OpenBGPD both IPsec and OpenBgpd worked for some hours ….....then all the IPSEC tunnels gone down , In Gui configuration tunnels still showing in established state but no traffic passing , for fixing the issue i have to restart the firewall , then it again starts working for some hours .

    I have tried these below steps also but all goes in vain  :'(

    killall -9 charon
    killall -9 starter
    ipsec stop
    ipsec start

    ipsec start states as :-

    Starting strongSwan 5.4.0 IPsec [starter]…
    charon is already running (/var/run/charon.pid exists) -- skipping daemon start
    no netkey IPsec stack detected
    no KLIPS IPsec stack detected
    no known IPsec stack detected, ignoring!
    starter is already running (/var/run/starter.charon.pid exists) -- no fork done

    Please suggest anybody i am using pfsense in production environment  :'(

    I was wondering if a downgrade to previous version can fix this issue , is any version is workable with both IPSEC and OPENBGPD.
    Please if anyone have any idea on this .



  • @choudharyprabhat:

    Hi All ,

    I am a newbie in pfsense , i have recently updated on pfsense 2.3 (AMD 64) ,all the things were working like a charm including IPSEC tunnels before installing OpenBgpd, as per our requirement i have installed OpenBGPD both IPsec and OpenBgpd worked for some hours ….....then all the IPSEC tunnels gone down , In Gui configuration tunnels still showing in established state but no traffic passing , for fixing the issue i have to restart the firewall , then it again starts working for some hours .

    I have tried these below steps also but all goes in vain  :'(

    killall -9 charon
    killall -9 starter
    ipsec stop
    ipsec start

    ipsec start states as :-

    Starting strongSwan 5.4.0 IPsec [starter]…
    charon is already running (/var/run/charon.pid exists) -- skipping daemon start
    no netkey IPsec stack detected
    no KLIPS IPsec stack detected
    no known IPsec stack detected, ignoring!
    starter is already running (/var/run/starter.charon.pid exists) -- no fork done

    Please suggest anybody i am using pfsense in production environment  :'(

    I was wondering if a downgrade to previous version can fix this issue , is any version is workable with both IPSEC and OPENBGPD.
    Please if anyone have any idea on this .

    Dude, you shouldnt have updated a prod system to 2.3 without testing!

    Anyway, yes i can confirm 2.2.6 works perfectly with IPSEC and openbgpd. Im using it myself on a prod network.

    There is an open bug report for this issue: https://redmine.pfsense.org/issues/6223



  • Thanks fattylewis , i have downgraded my pfsense box to 2.2.6 , now everything is working fine.  :) ;D

    there is one more thing to notice :- when i had edited /boot/loder.config.local >>>> net.inet.raw.maxdgram="131072"
    net.inet.raw.recvspace="131072" .

    Pfsense worked like charm with ipsec and bgp even on pfsense 2.3. :)

    for me that trick worked.

    Thanks CMB and fattylewis for your replies….you guys rocksssss..  ;)



  • @choudharyprabhat:

    Thanks fattylewis , i have downgraded my pfsense box to 2.2.6 , now everything is working fine.  :) ;D

    there is one more thing to notice :- when i had edited /boot/loder.config.local >>>> net.inet.raw.maxdgram="131072"
    net.inet.raw.recvspace="131072" .

    Pfsense worked like charm with ipsec and bgp even on pfsense 2.3. :)

    for me that trick worked.

    Thanks CMB and fattylewis for your replies….you guys rocksssss..  ;)

    Oh, nice find. Ill see about knocking up another network on 2.3 and adding your change and seeing what happens.



  • We've also had this issue on 2.3, and as we required BGP for our network, we've downgraded back to 2.2.6

    Looking forward to a confirmed fix (need to wait until after hours again to try the upgrade again)



  • I'm having the same problem with OpenBGP and IPSec.

    Restarted the following services:
    -OpenBGP
    -IPSec

    No luck.  Only rebooting worked.

    Then tried restarting:
    -OpenBGP
    -IPSec
    -OpenVPN

    Tunnel came back up.

    Not sure if that helps some of the developers with troubleshooting.

    I have stopped the OpenVPN service for now and will see if the issue returns.

    UPDATE:  Still having the issue even after disabling OpenVPN



  • Same issue, pair of SG-8860s with CARP failover, dual IPSec tunnels to a Verizon Private Network with OpenBGPd required for their routing. Exact same errors, even changing both tunables:

    net.inet.raw.maxdgram="131072"
    net.inet.raw.recvspace="131072"

    May extend the time, but definitely doesn't solve. Really don't want to go back to 2.2.6 :)



  • @obrienmd:

    Same issue, pair of SG-8860s with CARP failover, dual IPSec tunnels to a Verizon Private Network with OpenBGPd required for their routing. Exact same errors, even changing both tunables:

    net.inet.raw.maxdgram="131072"
    net.inet.raw.recvspace="131072"

    It's not just those two. Add:

    net.raw.recvspace=65535
    net.raw.sendspace=65535



  • FWIW, still seeing this problem here.  Yesterday I updated to 2.3.1 and also set these:

    @cmb:

    net.inet.raw.maxdgram="131072"
    net.inet.raw.recvspace="131072"
    net.raw.recvspace=65535
    net.raw.sendspace=65535

    I just bumped those up higher hoping it will help, but at least for us neither the 2.3.1 update nor those specific values fixed it.  Does it matter if they're set at System > Advanced > System Tunables rather than in loader.config.local?



  • We've now been up for over a week with these settings (set in System > Advanced > System Tunables):

    net.inet.raw.maxdgram 131072
    net.inet.raw.recvspace 1048576
    net.raw.recvspace 1048576
    net.raw.sendspace 1048576

    Edit:  up over 2 weeks now, still no problem



  • Hi I'm new here and have a problem with my PFSense and the IPsec connection .

    The environment :
    Location A pfsense 2.3.1_1
    Location B pfsense 2.3.1_1

    Connected via IPSec " SitetoSite "

    I tried all the tips from this thread. Unfortunately without success.

    Like
    changeing net.inet.raw.maxdgram  131072 
    net.inet.raw.recvspace  1048576 
    net.raw.recvspace  1048576 
    net.raw.sendspace  1048576

    The problem is when I try to access Site B about RMTC works without problems .
    However, if I want to print a print job from B to site A drops the connection and restarts.

    Does somebody has any idea ?

    I'm a bit desperate .

    Thank you very much

    I Forget to say that it works perfect before i updatet my pfsense …



  • Hi it´s me again, i tryed to use OPENVPN instead of IPSEC
    I have the same Problem and my PFSENSE reboot new after 2 min.

    Does anyone know this situation ?



  • Hello everybody!

    I have read that thread but unfortunately I have the same issue. We use PfSense 2.3.1 with OpenBGPD+IPsec to Amazon AWS.

    We have set that:

    
    net.inet.raw.maxdgram="131072"
    net.inet.raw.recvspace="131072"
    net.raw.recvspace=65535
    net.raw.sendspace=65535
    
    

    Our IPsec disconnect every couple hours. When I check IPsec status - looks ok, but I can not transfer any packets. I don't have to reboot Firewalls but only stop OpenBGPD and IPsec. Start again and all is working again ok for next couple of hours.

    Do you have any idea what I can check more? I didn't check that fix from GitHub. But do you think it could be it?

    Thank you for any help or answer.

    Best,
    Kamyk



  • I run a couple of pfsense boxes to link my house to a few neighbors (so hardly mission critical).
    Since the upgrade to 2.3, then 2.3.1, then 2.3.1p1, my IPsec tunnels haven't worked.
    I don't run OpenBGP (at least I don't think I do) and I tried applying the System Tuneables that jnorell suggested.
    I also tried purging all my VPN configurations, and recreating them. Still no love :(
    What's odd (at least to me), is that all the tunnels come up in the web interface, but they don't pass traffic.
    It's not the end of the world, as I moved to OpenVPN in the interim, however I'd prefer to get back to IPsec.
    Thanks in advance



  • @Kamyk:

    I have read that thread but unfortunately I have the same issue. We use PfSense 2.3.1 with OpenBGPD+IPsec to Amazon AWS.

    Known issue: https://redmine.pfsense.org/issues/6223


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