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Sophos XG OSPF über RED Verbindungsabbrüche

Jörg Schumann

Hallo in die Runde

seit geraumer Zeit versuchen wir Routen via OSPF zwischen zwei SG 230 mit Firmware SFOS 18.5.1 MR-1-Build326 (XG)

über einen RED-Tunnel auszutauschen. die OSPF Nachbarn tauschen die Routen, jedoch disconnected dann ständig der RED-Tunnel.

deaktiviere ich OSPF, steht der Tunnel.

Was kann da das Problem sein?.

gebaut haben wir es nach dieser Anleitung:  support.sophos.com/.../KB-000038170



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[edited by: Erick Jan at 3:05 AM (GMT -7) on 30 May 2023]
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  • FormerMember
    0 FormerMember

    Hi Jorg, Thanks for reaching out to Sophos Community.

    This seems unusual but can you check for the UDP flood on the device as RED communicates over UDP. I am just assuming that the LSA exchanges might cause this over the UDP tunnel.

    If there's no flooding, Check the 'ospfd.log', 'red.log' and if possible, 'zebra.log'. 

    Logs can be found in /log directory from Advanced shell (Option 5 > Option 3)

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  • FormerMember
    0 FormerMember

    Hi Jorg, Thanks for reaching out to Sophos Community.

    This seems unusual but can you check for the UDP flood on the device as RED communicates over UDP. I am just assuming that the LSA exchanges might cause this over the UDP tunnel.

    If there's no flooding, Check the 'ospfd.log', 'red.log' and if possible, 'zebra.log'. 

    Logs can be found in /log directory from Advanced shell (Option 5 > Option 3)

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