pfSense IPsec tunnel trouble

A preview here on Reddit would be nifty.

No idea of this changes anything.

From SITE A:

Feb 4 13:54:43 charon: 11[IKE] <con1000|6> sending DPD request Feb 4 13:54:43 charon: 11[ENC] <con1000|6> generating INFORMATIONAL_V1 request 1035171735 [ HASH N(DPD) ] Feb 4 13:54:43 charon: 11[NET] <con1000|6> sending packet: from 10.205.44.40[500] to 10.205.44.62[500] (92 bytes) Feb 4 13:54:43 charon: 11[NET] <con1000|6> received packet: from 10.205.44.62[500] to 10.205.44.40[500] (92 bytes) Feb 4 13:54:43 charon: 11[ENC] <con1000|6> parsed INFORMATIONAL_V1 request 2307089476 [ HASH N(DPD_ACK) ] Feb 4 13:54:53 charon: 11[IKE] <con1000|6> sending DPD request Feb 4 13:54:53 charon: 11[ENC] <con1000|6> generating INFORMATIONAL_V1 request 2354378551 [ HASH N(DPD) ] Feb 4 13:54:53 charon: 11[NET] <con1000|6> sending packet: from 10.205.44.40[500] to 10.205.44.62[500] (92 bytes) Feb 4 13:54:53 charon: 11[NET] <con1000|6> received packet: from 10.205.44.62[500] to 10.205.44.40[500] (92 bytes) Feb 4 13:54:53 charon: 11[ENC] <con1000|6> parsed INFORMATIONAL_V1 request 1417697917 [ HASH N(DPD_ACK) ]

SITE B:

Feb 4 13:54:43 charon: 11[IKE] <con1000|6> sending DPD request Feb 4 13:54:43 charon: 11[ENC] <con1000|6> generating INFORMATIONAL_V1 request 1035171735 [ HASH N(DPD) ] Feb 4 13:54:43 charon: 11[NET] <con1000|6> sending packet: from 10.205.44.40[500] to 10.205.44.62[500] (92 bytes) Feb 4 13:54:43 charon: 11[NET] <con1000|6> received packet: from 10.205.44.62[500] to 10.205.44.40[500] (92 bytes) Feb 4 13:54:43 charon: 11[ENC] <con1000|6> parsed INFORMATIONAL_V1 request 2307089476 [ HASH N(DPD_ACK) ] Feb 4 13:54:53 charon: 11[IKE] <con1000|6> sending DPD request Feb 4 13:54:53 charon: 11[ENC] <con1000|6> generating INFORMATIONAL_V1 request 2354378551 [ HASH N(DPD) ] Feb 4 13:54:53 charon: 11[NET] <con1000|6> sending packet: from 10.205.44.40[500] to 10.205.44.62[500] (92 bytes) Feb 4 13:54:53 charon: 11[NET] <con1000|6> received packet: from 10.205.44.62[500] to 10.205.44.40[500] (92 bytes) Feb 4 13:54:53 charon: 11[ENC] <con1000|6> parsed INFORMATIONAL_V1 request 1417697917 [ HASH N(DPD_ACK) ]

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