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How to COMPLETELY Uninstall ISA 2004

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  • How to COMPLETELY Uninstall ISA 2004

    I have a Small Business Server 2003 SP1 w/ Two NICs and ISA 2004 configured. They also have a Cisco PIX 506E implemented. The ISA serves as a DMZ using a 10.1.X.X network in between the internal 192.168.x.x and the external internet address provided by the ISP.

    Since they do not need two firewalls and do not do usage reporting I want to remove ISA because it seems to be hampering my VPN implementation. I used Add/Remove programs to uninstall ISA and rebooted. I reconfigured the PIX and removed any instance of the 10.1.X.X network from the PIX, DNS, NICs, etc. Unfortunately remnents of ISA must still be in place as the server cannot get out to the internet. I can ping the PIX (default gateway) but I cannot ping internet addresses. However, I can take a workstation on the network and supply it with a known Internet DNS server and the PIX as the gateway and it can get to the web. This eliminates the PIX as the issue. From all accounts everything is configured correctly but the server cannot reach the internet. Any ideas where the ISA may still be lingering and stomping on my access to the internet.

  • #2
    Re: How to COMPLETELY Uninstall ISA 2004

    sounds more a dns related isue.
    Any error messages from the client/server side?
    Did you made any tracerts?
    Did you tried nslookup to verfiy DNS is working problably?

    Could also be a routing issue.
    Did you checked any static routes?
    Is RRAS enabled on the server?

    Make otherwise a DCdiag and a Netdiag and post it back.

    So, many questions to answer first i think
    Marcel
    Technical Consultant
    Netherlands
    http://www.phetios.com
    http://blog.nessus.nl

    MCITP(EA, SA), MCSA/E 2003:Security, CCNA, SNAF, DCUCI, CCSA/E/E+ (R60), VCP4/5, NCDA, NCIE - SAN, NCIE - BR, EMCPE
    "No matter how secure, there is always the human factor."

    "Enjoy life today, tomorrow may never come."
    "If you're going through hell, keep going. ~Winston Churchill"

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    • #3
      Re: How to COMPLETELY Uninstall ISA 2004

      I don't know why you did that. I have several installations of PIX living happily with SBS Premium Edition and ISA 2004. For VPN I didn;t use Cisco's I just let it pass 1723 and GRE through to the SBS and it work flawlessly.
      If you didn't want that then you could have used the Cicso VPN to get you into the 10.x.x.x network and then used the MS PPTP VPN to get you inside the SBS LAN (Provided for you by the Connection Manager Wizard).

      I am afraid I don't know how to get you out of your current sitaution as it is never anything I have attempted. You could Swing your way out ( http://www.sbsmigration.com) back to the same hardware but that may a bit drastic.
      Your call!
      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.

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