Vinay, If your are in AD environment and your ISA Server is member of the AD, you may upgrade to Enetrprise edtion and configure an array. If you are not in AD environment, you may use standard edition and NLB for configuring two parallel ISA servers. It works for me. Regards, Raj -----Original Message----- From: Vinaykumar G [mailto:G.Vinay@xxxxxxxxx] Sent: October 24, 2001 1:12 AM To: [ISAserver.org Discussion List] Subject: [isalist] Urgent help please!!! http://www.ISAserver.org Hi All, Iam using ISA server as a standalone server(Standard Edition) and we want to implement parallel ISA server as backup so that if the original firewall is down for some reason the backup ISA server should act immediately.For this to implement Do we need to buy the standard Edition or Enterprise Edition of ISA server to implement this backup scenario. Any inputs would be greatly appreciated. Vinay, MCP+I,MCSE ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: psraj@xxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')