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  1. #1
    Newbie
    Join Date
    Jun 2008
    Posts
    5

    Default IPSec passthrough

    Apparently IPSec passthrough is supported with 5.2.1 but i cannot seem to get it working.

    I have inet->untangle->isa2004->internal network.

    untangle is in router mode. PPTP works fine through it and l2tp works fine to just the isa server without untangle. I have enabled the bypass rules for ipsec nat-t and bypass ipsec vpn traffic.

    Do i need to restart a service or something for the settings to take place? Not sure where to go from here.

    Thanks in advance for your help

    Ryan

  2. #2
    Master Untangler tbelote's Avatar
    Join Date
    Oct 2007
    Posts
    287

    Default

    Is the isa2004 an ipsec server or client? For a server you need to add port forwards as well.
    Thomas Belote
    Untangle

  3. #3
    Newbie
    Join Date
    Jun 2008
    Posts
    5

    Default

    isa2004 is the server - we are VPNing in through untangle. What port forwards do i need? From when i tested the 5.1 beta with pptp there was a command that needed to be ran that restarted a service or something, is that still the case?

  4. #4
    Newbie
    Join Date
    Jun 2008
    Posts
    5

    Default

    We tested putting in a port forward from the IP of the laptop to the external of the isa server. We also put in a bypass rule from the ip of the laptop.

    Using pptp the connection worked just fine.

    We are going to try setting UT up as a bridge and see if that works?

    Other than this set back UT is awesome. Just wish i could get l2tp working!

  5. #5
    Untangle Ninja sky-knight's Avatar
    Join Date
    Apr 2008
    Location
    Phoenix, AZ
    Posts
    26,498

    Default

    Did you forward TCP 1701 to your VPN server?
    Rob Sandling, BS:SWE, MCP
    NexgenAppliances.com
    Phone: 866-794-8879 x201
    Email: support@nexgenappliances.com

  6. #6
    Newbie
    Join Date
    Jun 2008
    Posts
    5

    Default

    Yes I have tried port forwarding 1701, 500, 4500, 47. We even tested all traffic from the IP of the test laptop. Very Confused at this point. I think my next step is a reinstall of ut 5.2.1

    I will advise on whether that works or not.

    Ryan

  7. #7
    Newbie
    Join Date
    Jun 2008
    Posts
    5

    Default

    Setup as a bridge the UT works great.

    rebuilt the UT again and set up in router mode- thank goodness this is quick and Found the issue in MS KB#885407 turns out XP has a reg key that needs to be created.

    Set the key on the latop that is connecting in and it works great. Hope this helps someone else also!
    Last edited by occs; 06-17-2008 at 11:38 AM.

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