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Thread: SLES 11 SP2 for VMware lose connectivity

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  1. SLES 11 SP2 for VMware lose connectivity

    Hello,

    I am new to SLES, so please bear with me.
    Simply put, scenario is following:
    - in my environment of network, 4 VMware (vSphere 5) hosts, and IBM Lotus Mobile Connect VPN
    - I have 4 SLES 11 SP2 for VMware servers which lose connectivity for certain clients which are connected via LMC VPN. Servers have 1 interface.
    - when connectivity is lost, the servers are still reachable via LAN. This appears only happen to remote clients
    - Looking at tcpdump/wireshark, I see packets coming in but not going out of SuSe
    Code:
    16:23:37.964832 IP 10.31.64.3 > vsv04: ICMP echo request, id 1, seq 27841, length 40
    16:23:42.946887 IP 10.31.64.3 > vsv04: ICMP echo request, id 1, seq 27847, length 40
    16:23:47.956295 IP 10.31.64.3 > vsv04: ICMP echo request, id 1, seq 27853, length 40
    16:23:52.945814 IP 10.31.64.3 > vsv04: ICMP echo request, id 1, seq 27859, length 40
    16:23:57.950353 IP 10.31.64.3 > vsv04: ICMP echo request, id 1, seq 27865, length 40
    16:24:03.041327 IP 10.31.64.3 > vsv04: ICMP echo request, id 1, seq 27871, length 40
    ^C12428 packets captured
    12428 packets received by filter
    0 packets dropped by kernel
    (this is Win 7 client -> LMC VPN -> SLES 11 SP2(vsv04))
    - for some reason the sequence number jumps off 5

    I'm clueless. Based on above information, should I suspect something SLES 11 SP2 internal or the VPN connection (which works perfectly to any other OS I have here)?
    Restarting interface resolves problem but only temporarily.
    Last edited by tkarhu; 15-Oct-2012 at 15:17.

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