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Cas Array can't access from outside my network

    Question

  • I have problem pinging NLB IP from outside my network even my router can't ping my NLB IP so eventually I can't access OWA with NLB / Casarray IP from outside my network, from the LAN everything seems to be working as I able to contact my NLB IP and also my outlook users can connect to it.......

    CAS1 server have certificate Installed so as CAS2 server....my DAG servers are seprate than CAS server

     

    Any Idea what it needs to be done to make it work

     

    Sunday, January 29, 2012 12:48 PM

All replies

  • Hello,

    If you are not able to be, that does not mean that your NLB CAS is not reachable. To be able to ping, make sure that ICMP traffic from your source to your NLB CAS.

    To publish OWA for Exchange 2010, refer to that: http://exchangemaster.wordpress.com/2010/04/09/publish-exchange-2010-with-tmg-forefront-threat-management-gateway/



    This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.   

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    Sunday, January 29, 2012 1:01 PM
  • Thanks for your quick response I checked my firewall ICMP traffic is allowed from any to any and document you provided does not actually suites to my organization since we don't have any firewall....

    Can you please let me any other way where I can check

    Monday, January 30, 2012 9:00 AM
  • Hi,

     

    Thank you for the post.

     

    Would you please elaborate your network topology? I suspect TMG server block the ping traffic, what is TMG live logging tell?

     

    Regards,


    Nick Gu - MSFT
    Tuesday, January 31, 2012 3:04 AM
    Moderator
  • Hello,

    we don't have TMG server in our network topolgy is straight forward....

    1.Router - Servers - Barracuda Web Filter I could see that no one is blocking NLB IP, I checked the windows Firewall status ICMP 4 & 6 is enabled in NLB Catagoery.

     

     

    Tuesday, January 31, 2012 5:01 AM
  • Hi,

     

    Thank you for the update.

     

    “we don't have TMG server in our network topolgy is straight forward....” – as this forum is mainly focus on TMG issue, if the issue related to windows networking, you may post thread here: http://social.technet.microsoft.com/Forums/en-US/winserverPN/threads.

     

    Regards,


    Nick Gu - MSFT
    Sunday, February 05, 2012 4:11 PM
    Moderator