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  1. #1
    Newbie
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    Nov 2008
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    Phoenix, AZ
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    Default Microsoft VPN issues

    Let me start by saying I Love Untangle.. Just rolled it out in a production enviroment as our Watchguard bit the dust so I had to do it quickly. The web proxy is wonderful, I just love the dirty looks I get from the myspace freaks who can't browse anymore..

    Ok now on to my issue... I have ports forwarded

    1723 tcp
    47 gre
    500 udp
    4500 udp
    50 tcp udp

    to machine 192.168.16.4 which is my server 2003 vpn machine

    When I hit connect from a remote client it does not connect, after I hit retry from 3-8 times it connects and registers just fine.

    I can then browse to the shares on remote machines I need. However after about 1 minute I can no longer browse and the connection will drop shortly afterwards.

    What can I provide to you all to help me with this issue??

    Or do you know my fix already

  2. #2
    mdh
    mdh is offline
    Untangle Ninja mdh's Avatar
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    Aug 2007
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    Default

    If you have a Linksys router on the side you are connecting from, try something else.

  3. #3
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    Nov 2008
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    Phoenix, AZ
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    Default

    No linksys its a T1 with a Cisco 1721... VPN has worked fine until the untangle went in..

  4. #4
    mdh
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    Untangle Ninja mdh's Avatar
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    Default

    sky-knight has dealt with a number of these issues. Maybe he'll spot this. Its usually a device that is not fond of PPTP.

  5. #5
    Untangle Ninja proactivens's Avatar
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    Sep 2008
    Location
    Greensburg, Pa
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    2,362

    Default

    Check the attack blocker, its possible the machine your VPNing into has built up a reputation and is getting packets dropped.

  6. #6
    Untangle Ninja sky-knight's Avatar
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    Apr 2008
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    Default

    All you need to forward is tcp 1723. All the rest is simply confusing things.

    Also, what interfaces are you using in Untangle? How much memory?

    I've found that PPTP is "very" sensitive to Untangle being even slightly slow delivering the packet.
    Rob Sandling, BS:SWE, MCP
    NexgenAppliances.com
    Phone: 866-794-8879 x201
    Email: support@nexgenappliances.com

  7. #7
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    Nov 2008
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    Phoenix, AZ
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    Default

    I am just using;

    web blocker
    virus scanner
    protocol blocker


    1 gig of ram



    I thought I had to have

    1723 tcp for vpn
    47 for gre
    500 and 4500 keep alive
    50 data stream

  8. #8
    Untangle Ninja sky-knight's Avatar
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    Apr 2008
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    Default

    Nope, just 1723 is enough to make it run. The RAM "may" be light. What interfaces? Actually try ditching all the port forwards except the 1723 rule and see if it stabilizes.
    Rob Sandling, BS:SWE, MCP
    NexgenAppliances.com
    Phone: 866-794-8879 x201
    Email: support@nexgenappliances.com

  9. #9
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    Nov 2008
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    Phoenix, AZ
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    Default

    Ok have 1723 only, heres my port forward. Does it all look good?

  10. #10
    mdh
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    Untangle Ninja mdh's Avatar
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    Add GRE protocol too.

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