Dell PowerConnect W-IAP92 Dell Instant 6.1.3.4-3.1.0.0 User Guide - Page 175

Chapter 20 Hierarchical Deployment In earlier releases of Dell Instant, an IAP could be connected to another IAP via the uplink port through a wired switch. If there is no wired infrastructure (Ethernet connection with a L3 NAT router), then multiple IAPs could not be deployed. An W-IAP130 series or RAP-3WN AP (with more than one wired port) can now be connected to the downlink wired port of another IAP (ethX). You can provision an IAP with a single Ethernet port (like W-IAP90 or WIAP100 series devices) to use enet0_bridging, so that Eth0 is converted do a downlink wired port. In such single Ethernet port platform deployments, the root AP must use the 3G uplink. In this release of Dell Instant, you can form an IAP network by connecting the downlink port of an AP to other APs. Only one AP in the network uses its downlink port to connect to the other APs. This AP (called the root AP) acts as the wired device for the network, provides DHCP service and an L3 connection to the ISP uplink with NAT. The root AP is always the master of the Instant network. On a single Ethernet port platform, you can use enet0_bridging so that Eth0 is converted to a downlink wired port and the root AP must have the 3G uplink configured. Deployment A typical hierarchical deployment is comprised of the following:  A direct wired ISP connection and/or wireless uplink.  One or more DHCP pools for private VLANs.  One downlink port configured on a private VLAN without authentication for connecting to slave APs.  This port should not be used for any wired client connection. Other downlink ports can be used for connecting to wired clients. Figure 145 Hierarchical Deployment Dell PowerConnect W-Series Instant Access Point 6.1.3.4-3.1.0.0 | User Guide Hierarchical Deployment | 175