Re: Back to Back ISA and Firewall Chaining

From: "Jim Harrison" <jim@xxxxxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Date: Wed, 6 Feb 2002 14:17:21 -0800
ISA MMC, Network Configuration, Properties, enter the IP of the upstream 
firewall in the appropriate fields.
ISA help also covers this.

Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG
http://isaserver.org/authors/harrison/
Read the books!

  ----- Original Message ----- 
  From: Lippman, Michael 
  To: [ISAserver.org Discussion List] 
  Sent: Wednesday, February 06, 2002 11:49
  Subject: [isalist] Re: Back to Back ISA and Firewall Chaining


  http://www.ISAserver.org


  Can you explain the steps to the firewall chaining method.  I currently have 
a back to back configuration but I am not sure firewall chaining.  

   

  We are experiencing problems with file downloads.  I wonder if this is why.

   

  MRL

   

  -----Original Message-----
  From: Jim Harrison [mailto:jim@xxxxxxxxxxxx] 
  Sent: Wednesday, February 06, 2002 11:15 AM
  To: [ISAserver.org Discussion List]
  Subject: [isalist] Re: Back to Back ISA and Firewall Chaining

   

  http://www.ISAserver.org

  Yes, it can; I've done it myself.

  How have you configured the Firewall chain; by name or IP?

   

  Jim Harrison
  MCP(NT4, W2K), A+, Network+, PCG
  http://isaserver.org/authors/harrison/
  Read the books!

    ----- Original Message ----- 

    From: Goktug Yildirim 

    To: [ISAserver.org Discussion List] 

    Sent: Tuesday, February 05, 2002 03:37

    Subject: [isalist] Back to Back ISA and Firewall Chaining

     

    http://www.ISAserver.org

    I am about to configure a back-to-back ISA configuration.

    As Tom Shinder writes i could chain the firewall services. But I could 
not...Internal ISA seems to be unaware of the external ISA with an eventlog 
that describes the unavailability of the other ISA.

    I do not have deep konwledge about firewall chaning and I think the problem 
is about the different roles of the ISA servers.

    Shortly, internal ISA is in integrated mode and external ISA is in 
firewall-mode. Do you know if firewall chaining can work with these ISA servers?

    Thanks for any comment,

    Goktug

     

     

    PS: Also I want to know why it is more secure using firewall chaining 
instead of defining rules to a fix ip addres?

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Re: Back to Back ISA and Firewall Chaining

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