Necessary to implement static NAT 1:1 10.1.2.3 -> 100.1.2.3 10.1.2.4 -> 100.1.2.4 10.1.2.5 -> 100.1.2.5 10.1.2.6 -> 100.1.2.6 ... IP addresses such an over 20k prompt you implement? -- Vladislav V. Prodan System & Network Administrator http://support.od.ua +380 67 4584408, +380 99 4060508 VVP88-RIPE