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VPN Question

  • 26-04-2008 8:35pm
    #1
    bob04
    Closed Accounts Posts: 140 ✭✭


    Hi guys

    I am setting up a site abroad and they are going to connect back to our HQ via VPN

    I have VPN setup already and tested and i can ping anything on the network in HQ

    However, i want to be able to authenticate a user logging in abroad, to a domain controller in HQ

    I have opened up ports in the firewall to do this, but if i try to log on as a user, i get a messages saying the domain is unavailable

    Can anyone shed any light on this matter for me?

    Does any one know what ports need to be opened up on my firewall for domain authenticaion?

    Many thanks in advance


Comments

  • #2
    FruitLover
    Registered Users, Registered Users 2 Posts: 2,534 ✭✭✭FruitLover


    In my expert opinion:

    http://www.google.ie/search?q=domain+authentication+ports


  • #3
    djr
    Registered Users, Registered Users 2 Posts: 231 ✭✭djr


    so, esentially, there will be a vpn router at the remote end, with PC's behind it?

    2 seperate subnets etc.

    the problem is that the remote PC is attempting to look up DNS SRV resource records for it's parent domain, but can't find them by querying the DNS on it's end of the VPN connection (which is probably only sending queries onto an internet DNS server).

    what you can do is edit the DHCP settings on the remote VPN router to give a DNS server in the HQ subnet to the remote PC.

    example:

    HQ subnet: 192.168.50.0/24
    HQ DNS Server: 192.168.50.10

    Remote subnet: 192.168.60.0/24
    Remote router: 192.168.60.1
    Remote DHCP Range: 192.168.60.100-200
    DHCP Scope supplied DNS server for clients: 192.168.50.10

    => a pc leases an address at the remote site in the 192.168.60.0/24 subnet, is given a default gateway address of 192.168.60.1, and a DNS server address of 192.168.50.10

    ...providing the remote pc can ping the dns server, and query it using nslookup, you should be good to go.


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