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L2TP Drops

Keith_M
I have a client that has the LT2p Drop every couple hours. Has anyone else had this problem?  What is the longest connection you guys have had? Does it need to remain active or can it just stay up?  

Thanks,
Keith


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  • 0
    What about the logile? Maybe it will tell you why it discconnects. Please post it here, than we are able to debug.
  • 0 in reply to bagira
    Here's some more from my log file.  I caught this just as his connection dropped.

    2004:09:09-10:23:57 f1rewall pluto[27239]: packet from x.x.x.x:4500: ignoring Delete SA payload: not encrypted
    2004:09:09-10:23:57 f1rewall pluto[27239]: packet from x.x.x.x:4500: received and ignored informational message
    2004:09:09-10:23:57 f1rewall pluto[27239]: "S_L2TP_Connection_1"[72] x.x.x.x:4500 #7793: received Delete SA payload: deleting ISAKMP State #7793
    2004:09:09-10:23:57 f1rewall pluto[27239]: "S_L2TP_Connection_1"[72] x.x.x.x:4500: deleting connection "S_L2TP_Connection_1" instance with peer x.x.x.x
    2004:09:09-10:23:57 f1rewall pluto[27239]: packet from x.x.x.x:4500: received and ignored informational message
    2004:09:09-10:25:27 f1rewall pluto[27239]: packet from x.x.x.x:500: ignoring Vendor ID payload [MS NT5 ISAKMPOAKLEY 00000004]
    2004:09:09-10:25:27 f1rewall pluto[27239]: packet from x.x.x.x:500: ignoring Vendor ID payload [FRAGMENTATION]
    2004:09:09-10:25:27 f1rewall pluto[27239]: packet from x.x.x.x:500: received Vendor ID payload [draft-ietf-ipsec-nat-t-ike-02_n]
    2004:09:09-10:25:27 f1rewall pluto[27239]: packet from x.x.x.x:500: ignoring Vendor ID payload [26244d38eddb61b3...]

    Please let me know if you see anything out of the ordinary
    Regards,
    Chad
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  • 0 in reply to bagira
    Here's some more from my log file.  I caught this just as his connection dropped.

    2004:09:09-10:23:57 f1rewall pluto[27239]: packet from x.x.x.x:4500: ignoring Delete SA payload: not encrypted
    2004:09:09-10:23:57 f1rewall pluto[27239]: packet from x.x.x.x:4500: received and ignored informational message
    2004:09:09-10:23:57 f1rewall pluto[27239]: "S_L2TP_Connection_1"[72] x.x.x.x:4500 #7793: received Delete SA payload: deleting ISAKMP State #7793
    2004:09:09-10:23:57 f1rewall pluto[27239]: "S_L2TP_Connection_1"[72] x.x.x.x:4500: deleting connection "S_L2TP_Connection_1" instance with peer x.x.x.x
    2004:09:09-10:23:57 f1rewall pluto[27239]: packet from x.x.x.x:4500: received and ignored informational message
    2004:09:09-10:25:27 f1rewall pluto[27239]: packet from x.x.x.x:500: ignoring Vendor ID payload [MS NT5 ISAKMPOAKLEY 00000004]
    2004:09:09-10:25:27 f1rewall pluto[27239]: packet from x.x.x.x:500: ignoring Vendor ID payload [FRAGMENTATION]
    2004:09:09-10:25:27 f1rewall pluto[27239]: packet from x.x.x.x:500: received Vendor ID payload [draft-ietf-ipsec-nat-t-ike-02_n]
    2004:09:09-10:25:27 f1rewall pluto[27239]: packet from x.x.x.x:500: ignoring Vendor ID payload [26244d38eddb61b3...]

    Please let me know if you see anything out of the ordinary
    Regards,
    Chad
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