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Incorrect PSK / UDP port seems blocked issue

Hi,

I am facing Incorrect PSK and UDP port block issue when trying to connect SOPHOS connect. My request is going through one branch office SOPHOS firewall. When I am trying to connect from outside the branch office firewall, its connecting. I have unblocked the IKE service and allowed all traffic. Yet I am facing the same issue. For reference, I have uploaded the firewall logs. Kindly help to solve the issue.

2021-10-16 07:59:00PM 15[IKE] <Mycompany|25> INFORMATIONAL_V1 request with message ID 2105044708 processing failed

2021-10-16 07:59:02PM 13[IKE] <Mycompany|25> sending retransmit 1 of request message ID 0, seq 3

2021-10-16 07:59:02PM 13[NET] <Mycompany|25> sending packet: from 192.168.172.2[54844] to X.X.X.X[4500] (92 bytes)

2021-10-16 07:59:03PM 12[NET] <XXXX|25> received packet: from XX.XX.XX.XX[500] to 192.168.172.2[54843] (92 bytes)

2021-10-16 07:59:03PM 12[ENC] <Mycompany|25> invalid HASH_V1 payload length, decryption failed?

2021-10-16 07:59:03PM 12[ENC] <Mycompany|25> could not decrypt payloads

2021-10-16 07:59:03PM 12[IKE] <Mycompany|25> message parsing failed

2021-10-16 07:59:03PM 12[IKE] <Mycompany|25> ignore malformed INFORMATIONAL request

2021-10-16 07:59:03PM 12[IKE] <Mycompany|25> INFORMATIONAL_V1 request with message ID 1759850583 processing failed

2021-10-16 07:59:08PM 15[IKE] <Mycompany|25> sending retransmit 2 of request message ID 0, seq 3

2021-10-16 07:59:08PM 15[NET] <Mycompany|25> sending packet: from 192.168.172.2[54844] to XX.XX.XX.XX[4500] (92 bytes)

2021-10-16 07:59:09PM 12[NET] <Mycompany|25> received packet: from XX.XX.XX.XX[500] to 192.168.172.2[54843] (92 bytes)

2021-10-16 07:59:09PM 12[ENC] <Mycompany|25> invalid HASH_V1 payload length, decryption failed?

2021-10-16 07:59:09PM 12[ENC] <Mycompany|25> could not decrypt payloads

2021-10-16 07:59:09PM 12[IKE] <Mycompany|25> message parsing failed

2021-10-16 07:59:09PM 12[IKE] <Mycompany|25> ignore malformed INFORMATIONAL request

2021-10-16 07:59:09PM 12[IKE] <Mycompany|25> INFORMATIONAL_V1 request with message ID 2608440185 processing failed

2021-10-16 07:59:20PM 11[IKE] <Mycompany|25> giving up after 2 retransmits

2021-10-16 07:59:20PM 11[IKE] <Mycompany|25> establishing IKE_SA failed, peer not responding

2021-10-16 07:59:21PM 08[CFG] vici terminate IKE_SA 'Mycompany'

2021-10-16 07:59:21PM 09[ESP] unsupported IP version

2021-10-16 07:59:21PM 52[KNL] interface 46 'Sophos TAP Adapter' changed state from Up to Down

2021-10-16 07:59:22PM 16[CFG] unloaded shared key with id 'Mycompany-psk-id'

2021-10-16 07:59:22PM 08[CFG] unloaded shared key with id 'Mycompany-user-id'

 



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Parents
  • Hello  Kripasindhu,

    Thank you for contacting the Sophos Community.

    Are you trying to connect internally to the Sophos Connect and that is when it fails? "When I am trying to connect from outside the branch office firewall, its connecting"

    Where are you trying to connect from?

    Regards,

Reply
  • Hello  Kripasindhu,

    Thank you for contacting the Sophos Community.

    Are you trying to connect internally to the Sophos Connect and that is when it fails? "When I am trying to connect from outside the branch office firewall, its connecting"

    Where are you trying to connect from?

    Regards,

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