Specifications

Dynamic Host Configuration Protocol – Summit WM series switch and AP Discovery and other Services
Summit WM Series WLAN Switch and Altitude Access Point Software Version 4.1 Technical Reference Guide
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In this setup there are four different areas in which DHCP must be considered:
Figure 2: Areas needing consideration for DHCP
Table 1: Use of DHCP
Area Description of use for DHCP
A DHCP INFORM messages are periodically sent on all physical ports (esa0-1 on C1000, esa0-3 on
C100). DHCP INFORM messages are NOT requests for addressing on that segment. These
messages use DHCP INFORM option 78 to provide information to other Summit WMs deployed on
the same segment.
For setups that use multiple Summit WMs, a DHCP server in area A is required to answer requests
for option 78 to allow availability and mobility to work. No addresses will be consumed.
For a single Summit WM setup, a DHCP server in this area is not required.
DHCP services for this area MUST be provided external to the Summit WM.
B In general APs that are used with the Summit WM may use either a static or dynamically assigned
IP address.
For APs that are connected to the same subnet as the Summit WM initial discovery can take place
directly using multicast. However, the deployer of the APs may still wish to utilize DHCP
addressing for the APs. Additionally, support for option 78 may be used in this area to aid in the
initial discovery of the Summit WM by the APs.
DHCP services for this area MUST be provided external to the Summit WM.