Dell W-7030 AOS 6.4.x CLI Reference Guide - Page 651

netdestination netdestination description host [position ] invert name network [position ] no ... range [position ] Description This command configures an alias for an IPv4 network host, subnetwork, or range of addresses. Syntax Parameter description host invert network no range Description Name for this host or domain. Maximum length is 63 characters. Description about the this destination up to 128 characters long. Configures a single IPv4 host and its position in the list. Specifies that the inverse of the network addresses configured are used. For example, if a network of 172.16.0.0 255.255.0.0 is configured, this parameter specifies that the alias matches everything except this subnetwork. An IPv4 subnetwork consisting of an IP address and netmask. Negates any configured parameter. A range of IPv4 addresses consisting of sequential addresses between a lower and an upper value. The maximum number of addresses in the range is 16. If larger ranges are needed, convert the range into a subnetwork and use the network parameter. Usage Aliases can simplify configuration of session ACLs, as you can use an alias when specifying the traffic source and/or destination it in multiple session ACLs. Once you configure an alias, you can use it to manage network and host destinations from a central configuration point, because all policies that reference the alias will be updated automatically when you change the alias. When using the invert option, use caution when defining multiple aliases, as entries are processed one at a time. As an example, consider a netdestination configured with the following two network hosts: netdestination dest1 invert network 1.0.0.0 255.0.0.0 network 2.0.0.0 255.0.0.0 A frame from http://1.0.0.1 would match the first alias entry, (which allows everything except for 1.0.0.0/8) so the frame would be rejected. However, it would then be compared against the second alias, which allows everything except for 2.0.0.0/8, and the frame would be permitted. 651 | netdestination Dell Networking W-Series ArubaOS 6.4.x | User Guide