Dear Paul: according to my perception:when we have a pool of addresses hired from certain operator/internic we configure it to be used statically or through NAT.we may not need to use all IP addresses for nAT lonely but some of them can be used for static trans.thats why we describe the start IP abbresses and end ip Address.NAT function should know the subnet mask coz when a packet from private addresse comes in it is translated thru NAT with subnetmask attached .Subnetmask in this case will help the routing of the packet when it comes back to the oronating system through different routers.Plus in all IP address scenarios we need to mention IP adress with mask as router do the AND operation to extract original IP address.It would not have been possible for any router in the path to extract orinal network without having subnetmask
i hope u understand whay i m saying Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=37840&t=37815 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

