Host to LAN VPN Woes

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    greyman
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    Performing a sanity check of my configuration between my zeroshel system and my OSX box running 10.4.8 I decided to see what was occurring when I tried connecting.

    .3 OSX system
    .1 Zeroshell system

    sudo tcpdump -i en0 -n -p -s 65535 port 500 or port 1701

    tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
    listening on en0, link-type EN10MB (Ethernet), capture size 65535 bytes
    00:13:14.935809 IP 192.168.1.3.500 > 192.168.1.1.500: isakmp: phase 1 I ident
    00:13:17.936132 IP 192.168.1.3.500 > 192.168.1.1.500: isakmp: phase 1 I ident
    00:13:20.936615 IP 192.168.1.3.500 > 192.168.1.1.500: isakmp: phase 1 I ident
    00:13:23.936920 IP 192.168.1.3.500 > 192.168.1.1.500: isakmp: phase 1 I ident
    00:13:26.904898 IP 192.168.1.3.500 > 192.168.1.1.500: isakmp: phase 1 I ident
    00:13:29.905633 IP 192.168.1.3.500 > 192.168.1.1.500: isakmp: phase 1 I ident

    This test is done being directly connected to one of the interfaces of the zeroshell interfaces. Below is a list of the listening ports on the zeroshell system that concerns L2TP VPN connectivity.

    root@zeroshell root> netstat -an | grep 500
    udp 0 0 XX.XX.XX.XX:500 0.0.0.0:*
    udp 0 0 192.168.142.142:500 0.0.0.0:*
    udp 0 0 192.168.141.142:500 0.0.0.0:*
    udp 0 0 192.168.X.X:500 0.0.0.0:*
    udp 0 0 192.168.X.X:500 0.0.0.0:*
    udp 0 0 127.0.0.1:500 0.0.0.0:*

    root@zeroshell root> netstat -an | grep 1701
    udp 0 0 0.0.0.0:1701 0.0.0.0:*

    Any advice or places to look to make sure everything is functioning properly.

    TIA
    -Ron

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