Hi Muhommand, I've been meaning to write an article for a long time on this subject. The bottom line is that NLB and CARP really don't add much to each other. Someday I'll go into a long winded explanation :-) But, to solve your problem, you can use NLB on the Internal interface and enable CARP on outgoing request. Check the ISAserver.org site for some details. HTH, Tom Thomas W Shinder www.isaserver.org/shinder <http://www.isaserver.org/shinder> ISA 2004 Beta - Get it now! http://www.microsoft.com/isaserver/beta/default.asp <http://www.microsoft.com/isaserver/beta/default.asp> ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: http://tinyurl.com/1llp <http://tinyurl.com/1llp> -----Original Message----- From: mathif@xxxxxxxxxxxxxxx [mailto:mathif@xxxxxxxxxxxxxxx] Sent: Saturday, June 19, 2004 1:42 AM To: [ISAserver.org Discussion List] Subject: [isalist] RE: Testing ISA Array http://www.ISAserver.org Thomas, many thanks for the reply. How do i configure NLB, can u suggest me any documentation for reading. Do i need to put the array on Cluster for NLB, I am running out of ideas. Can any one suggest me Thanks for your time. Regards, Mohammed Athif Khaleel Asst.Network Engineer AlFaisaliah Group Information Technology Tel.: +966-1-461-0077 x.209 Moble.: +966-509774015 Email: mathif@xxxxxxxxxxxxxxx "Save Internet, Keep all the systems patched" Web: http://alfaisaliah.com <http://alfaisaliah.com/> Local Time: GMT+3 -----Original Message----- From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx] Sent: Thursday, 17 June 2004 11:05 PM To: [ISAserver.org Discussion List] Subject: [isalist] RE: Testing ISA Array http://www.ISAserver.org Hi Athif, For real time failover you need NLB of some kind. CARP and client side routing provide primarily fail over capability. HTH, Tom Thomas W Shinder www.isaserver.org/shinder <http://www.isaserver.org/shinder> ISA 2004 Beta - Get it now! http://www.microsoft.com/isaserver/beta/default.asp <http://www.microsoft.com/isaserver/beta/default.asp> ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: http://tinyurl.com/1llp <http://tinyurl.com/1llp> -----Original Message----- From: mathif@xxxxxxxxxxxxxxx [mailto:mathif@xxxxxxxxxxxxxxx] Sent: Thursday, June 17, 2004 2:48 PM To: [ISAserver.org Discussion List] Subject: [isalist] Testing ISA Array http://www.ISAserver.org Hello Folks, Just now I have configured ISA Array with 2 ISA Servers and before I put that into production, I wanna test how it will respond if one of the servers in array is down. I cant go live as of now unless I take the downtime and give a presentation to the management about the redundancy. BTW, this array is not in the cluster. Is it must to be in cluster for the redundancy... Can any one explain me. I have followed the document http://www.isaserver.org/tutorials/Configuring_ISA_Server_Arrays.html <http://www.isaserver.org/tutorials/Configuring_ISA_Server_Arrays.html> Any one having any experience with ISA Arrays. Can anyone explain about the ISA Redundancy or suggest some documents for reading.