Wireless/Redundant Edge Services xl Module Management and Configuration Guide WS.02.xx and greater

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Introduction
Radio Ports
■ DNS requests—request the IP address for the Wireless Edge Services xl
Module. If the RP does not receive option 189 from the DHCP server, it
uses DNS to discover the module’s IP address. At its factory settings, the
RP requests the IP address for this hostname: PROCURVE-WESM. The RP
also adds the domain suffix that it received in the DHCP configuration.
For example:
PROCURVE-WESM.procurve.com
If your Wireless Edge Services xl Module uses a customized hostname,
you must first adopt the RP at Layer 2. After a module adopts the RP, you
can change the hostname for which the RP sends the request. You can
then install the RP in its final location, and the RP can find the module
with the customized hostname.
■ Hello messages targeted to the module’s IP address—request that
the Wireless Edge Services xl Module adopt the RP. The RP is adopted on
the VLAN on which the module receives the message, which is usually one
of the module’s uplink VLANs. (If so, do not tag this VLAN on the module’s
downlink port: the uplink and downlink ports must never carry the same
VLANs.) Remember that because the RP is on a different subnetwork than
the module, the RP’s DHCP configuration must include a default gateway
that can route the RP’s messages to the module.
Figure 1-23 shows the messages that an RP sends as part of Layer 3 adoption.