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Outllook will not resolve on VPN with Dual NIC

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  • Outllook will not resolve on VPN with Dual NIC

    Hi All,

    really need some help URGENTLY with this please.

    have an MS SBS2003 R2 box that is running with two NICs. I have setup (using the remote access wizard in 2003) client machines to have access to exchange using the windows VPN - PPTP. After initiating the VPN from client machine, MS outlook resolves fine!

    This week we installed Cisco hardware to host a VPN between the head office (location of SBS box) and a remote site. The VPN connects and I can RDP into the outside NIC (10.1.1.2) on the SBS box from the remote site, however I cannot get outlook to resolve. PLEASE HELP?!

    I have illustrated the setup as shown in the diagram below. I really need to get outlook resolving ASAP please.

    There is no issue with firewalls from what I have checked and as stated, please note I can get outlook to resolve using the PPTP tunnel when intiated from the client side. Also, I have triple checked with Cisco and confirmed all firewall polocies are set to allow IP and TCP communications accross the VPN from the necessary LANS and VLANS freely.

    This is sooo frustrating..


    Thanks in advance

  • #2
    Re: Outllook will not resolve on VPN with Dual NIC

    Nor sure what is failing here. Clients from outside the lan in general , or clients in the remote site?

    A quick look at what you are doing seems to indicate your Cisco doesn't know how to forward/NAT to the 192.168.10.0 network.
    TIA

    Steven Teiger [SBS-MVP(2003-2009)]
    http://www.wintra.co.il/
    sigpic
    Iím honoured to have been selected for the SMB 150 list for 2013. This is the third time in succession (no logo available for 2011) that I have been honoured with this award.

    We donít stop playing because we grow old, we grow old because we stop playing.

    Comment


    • #3
      Re: Outllook will not resolve on VPN with Dual NIC

      Hi Teiger,

      The users in teh remote site cannot resolve outlook to exchange.
      I have not been able to confirm with anybody if exchange can anser on teh 10.1.1.2 NIC. It does respone to a telnet over teh VPN but as stated, outlook will not resolve.

      I am heading to site today to test outlook locally on the 10.1.1.2 NIC, if I have no luck I am going to remove the dual NIC setup and run with only one NIC on the server as I am out of options.

      Either way, this is a Cisco OR RRAS issue. Cisco have spent hours, and I mean HOURS on this. RRAS does not appear to offer any real options so, testing will prevail I hope.

      Comment


      • #4
        Re: Outllook will not resolve on VPN with Dual NIC

        Have you looked at the paper about adding a DC to a branch office over on http://www.smallbizserver.net/ ? You may need a subscription to see it - but it is well worth the money - compare it to the price of the "hours" that Cisco have spent!
        TIA

        Steven Teiger [SBS-MVP(2003-2009)]
        http://www.wintra.co.il/
        sigpic
        Iím honoured to have been selected for the SMB 150 list for 2013. This is the third time in succession (no logo available for 2011) that I have been honoured with this award.

        We donít stop playing because we grow old, we grow old because we stop playing.

        Comment


        • #5
          Re: Outllook will not resolve on VPN with Dual NIC

          hmm.. very strange .. I had have very similar setup VPN Site-2-Site and we were able to resolve Outlook or log on to SBS.

          well, back to your issues:
          - can you ping SBS IP?
          - Can you access from the branch office https:// (SBS internal IP)/exchange ?
          - try add SBS IP to DNS on client computer .. it may do the trick
          - can you access over WAN https://owa.yoursbs.com/exchange from teh clients / If yes, you can easilly add the settings into Outlook on client computer and it will work for you for the time of figuring out the VPN issue

          tyry on client pc at the branch behind Cisco run portqry tool to see if the ports are open or blocked

          portqry -n (host name or IP) -o 443
          if it is open you should see responese LISTENING if not it will be filterted somewhere and that should give you some ideas
          Last edited by abakus; 30th April 2008, 23:33.

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