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VPN authentication and MAC addresses


Why is MAC-based authentication insecure?Windows Authentication Issues Over InternetCisco AnyConnect VPN client - prevent connecting as work networkMinecraft proxy/vpn setupLinksys RV042 and QuickVPN failsSetting up a SSTP VPN on Windows Server 2012 behind a routerDDWRT - OpenVPN connects, but can't communicateResolve names on OpenVPN server side?SSH port tunnelling to access device on VPN server's network (not connected to VPN)vpn client can not connect to hosts over the vpn server













0















I have to set up a VPN (various clients connecting to a web service on a server, which is also the VPN server) and I want to make sure that no user will share his/her credentials with third parties.



I know that this problem is not solvable completely, but I'd want to set up some additional security checks... Some idea I have:



1) An additional check on MAC address, but... are MAC addresses preserved thru VPN?
2) Some kind of extra identification of the client (User Agent, open ports, I want to make sure that is the very same client I authorized).
3) I would like to avoid commercial solutions like a security token... I realize it would be the perfect solution, but it will be to expensive, I suppose...



Do you feel that these options are viable? Do you have any other ideas? Thanks in advance for your replies!










share|improve this question














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    0















    I have to set up a VPN (various clients connecting to a web service on a server, which is also the VPN server) and I want to make sure that no user will share his/her credentials with third parties.



    I know that this problem is not solvable completely, but I'd want to set up some additional security checks... Some idea I have:



    1) An additional check on MAC address, but... are MAC addresses preserved thru VPN?
    2) Some kind of extra identification of the client (User Agent, open ports, I want to make sure that is the very same client I authorized).
    3) I would like to avoid commercial solutions like a security token... I realize it would be the perfect solution, but it will be to expensive, I suppose...



    Do you feel that these options are viable? Do you have any other ideas? Thanks in advance for your replies!










    share|improve this question














    bumped to the homepage by Community 6 hours ago


    This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.


















      0












      0








      0








      I have to set up a VPN (various clients connecting to a web service on a server, which is also the VPN server) and I want to make sure that no user will share his/her credentials with third parties.



      I know that this problem is not solvable completely, but I'd want to set up some additional security checks... Some idea I have:



      1) An additional check on MAC address, but... are MAC addresses preserved thru VPN?
      2) Some kind of extra identification of the client (User Agent, open ports, I want to make sure that is the very same client I authorized).
      3) I would like to avoid commercial solutions like a security token... I realize it would be the perfect solution, but it will be to expensive, I suppose...



      Do you feel that these options are viable? Do you have any other ideas? Thanks in advance for your replies!










      share|improve this question














      I have to set up a VPN (various clients connecting to a web service on a server, which is also the VPN server) and I want to make sure that no user will share his/her credentials with third parties.



      I know that this problem is not solvable completely, but I'd want to set up some additional security checks... Some idea I have:



      1) An additional check on MAC address, but... are MAC addresses preserved thru VPN?
      2) Some kind of extra identification of the client (User Agent, open ports, I want to make sure that is the very same client I authorized).
      3) I would like to avoid commercial solutions like a security token... I realize it would be the perfect solution, but it will be to expensive, I suppose...



      Do you feel that these options are viable? Do you have any other ideas? Thanks in advance for your replies!







      security vpn authentication mac-address






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Dec 3 '10 at 22:35









      zakkzakk

      1011




      1011





      bumped to the homepage by Community 6 hours ago


      This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.







      bumped to the homepage by Community 6 hours ago


      This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
























          1 Answer
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          0















          1) An additional check on MAC address, but... are MAC addresses preserved thru VPN?




          MAC addresses can be changed. Even if you write a custom program that pokes the hardware directly, one can run it inside a virtual machine, and route VPN traffic through it.



          Besides, the VPN connection usually gets its own virtual network interface, with its own hardware address.




          2) Some kind of extra identification of the client (User Agent, open ports, I want to make sure that is the very same client I authorized).




          All those things are manipulated easily.






          share|improve this answer























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            1 Answer
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            active

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            0















            1) An additional check on MAC address, but... are MAC addresses preserved thru VPN?




            MAC addresses can be changed. Even if you write a custom program that pokes the hardware directly, one can run it inside a virtual machine, and route VPN traffic through it.



            Besides, the VPN connection usually gets its own virtual network interface, with its own hardware address.




            2) Some kind of extra identification of the client (User Agent, open ports, I want to make sure that is the very same client I authorized).




            All those things are manipulated easily.






            share|improve this answer




























              0















              1) An additional check on MAC address, but... are MAC addresses preserved thru VPN?




              MAC addresses can be changed. Even if you write a custom program that pokes the hardware directly, one can run it inside a virtual machine, and route VPN traffic through it.



              Besides, the VPN connection usually gets its own virtual network interface, with its own hardware address.




              2) Some kind of extra identification of the client (User Agent, open ports, I want to make sure that is the very same client I authorized).




              All those things are manipulated easily.






              share|improve this answer


























                0












                0








                0








                1) An additional check on MAC address, but... are MAC addresses preserved thru VPN?




                MAC addresses can be changed. Even if you write a custom program that pokes the hardware directly, one can run it inside a virtual machine, and route VPN traffic through it.



                Besides, the VPN connection usually gets its own virtual network interface, with its own hardware address.




                2) Some kind of extra identification of the client (User Agent, open ports, I want to make sure that is the very same client I authorized).




                All those things are manipulated easily.






                share|improve this answer














                1) An additional check on MAC address, but... are MAC addresses preserved thru VPN?




                MAC addresses can be changed. Even if you write a custom program that pokes the hardware directly, one can run it inside a virtual machine, and route VPN traffic through it.



                Besides, the VPN connection usually gets its own virtual network interface, with its own hardware address.




                2) Some kind of extra identification of the client (User Agent, open ports, I want to make sure that is the very same client I authorized).




                All those things are manipulated easily.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Dec 4 '10 at 19:28









                grawitygrawity

                239k37506561




                239k37506561






























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