VPN protocols

From: Dan Tesch (dan.tesch_at_comcast.net)
Date: 12/22/04

  • Next message: John Forristel (SunGard-Chico): "RE: VPN protocols" 
    To: "Pen Test" <pen-test@securityfocus.com>
Date: Wed, 22 Dec 2004 07:43:23 -0600

    I am not very up on VPN protocols, I am testing a network that
    has an edge router which has several site-to-site VPN's set up
    and several clients connecting to it via MS PPTP client.

    I know that the router has gre and esp and tcp 1723 open

    A standard Nessus scan shows 1723 but doesn't pick up gre or esp

    What setting might I look for in Nessus to allow it to see gre and esp?

    What kinds of tests should be run against these next?

    Thanks

  • Next message: John Forristel (SunGard-Chico): "RE: VPN protocols"

    Relevant Pages

    • Re: Nach Update auf Enterprise Edition keine L2TP Verbindung möglich
      ... Name, Protokoll, Port, Ziel, an Port ... "VPN ESP", ESP, 192.168.115.11 ... "VPN GRE", GRE, 192.168.115.11 ...
      (microsoft.public.de.german.windows.server.networking)
    • RE: VPN protocols
      ... GRE and ESP are IP Protocols. ... On nearly all modern firewalls you specify the ip transport [esp, ah, gre, other] between the two networks. ... In a conduit statement: ...
      (Pen-Test)
    • Re: VPN protocols
      ... you permit gre and esp through for the VPN ... they are not transported on configured ports. ...
      (Pen-Test)