Extreme Networks Summit WM - Wireless AP DHCP Registration Setup (WINDOWS); Create a New DHCP Scope and Configure Option 78

Configuration of Dynamic Host Configuration Protocol (DHCP)
Summit WM Technical Reference Guide, Software Version 5.126
Wireless AP DHCP Registration Setup (WINDOWS)
You can configure the DHCP service that is included with Windows 2000 and Windows 2003 to provide
DHCP option 78. Extreme Networks Summit WM Access Points (Wireless AP) as clients to the Summit
WM Controller (Summit WM Controller) may require the configuration of DHCP options 78 for
controller discovery. These options are sometimes referred to as the SLP options. The SLP options (from
Request for Comments [rfc] 2610) have an extra flag in the option field that is different than any other
DHCP option. This flag is called the Mandatory byte. No other DHCP options for simple address arrays
follow this structure.
The following example compares SLP options to DCHP options:
SLP options:
| Code = 78 | Length | Mandatory | a1 | a2 | a3 | a4 |...
All other DHCP options:
| Code = 32 | Length | a1 | a2 | a3 | a4 |...
This extra 5
th
byte prevents you from using the IPAddress array type in the snap-in when you add this
option. However, you can add the option by creating option 78 as a Byte array.
Create a New DHCP Scope and Configure Option 78
1 Start Programs Administrative Tools DHCP
2 <Right mouse click> Server or Superscope (if created and applicable) select New Scope.
NOTE
If you wish to use an existing scope and all that you wish to do is add the SLP option; <right mouse click> on
the Scope Options of the related existing DHCP scope and proceed to Step 13.
3 The New Scope Wizard will appear <Next>
4 Enter Name and Description of the new scope for the Wireless AP’s <Next>
5 IP Address Range dialog; select the Start and End points for your Wireless AP IPs and the associated
Subnet in one of two ways Bit Length (ex. 24) or Dotted Decimal (ex. 255.255.255.0) <Next>.
6 Add Exclusions dialog; If applicable Start and End points for addresses within the created pool that
need to retain the same IP address. <Next>
7 Lease Duration dialog; Lease times <Next>
8 Configure DHCP Options dialog; Select Yes <Next>
9 Default Gateway dialog; Self explanatory <Next>
10 Domain Information dialog; Self explanatory <Next>
11 WINS Information dialog; Self explanatory <Next>
12 Activate Scope dialog; Yes <Next>
13 Under the newly created Scope <right mouse> on Scope Options select Configure Options
14 General Tab; Select Option 78 SLP DA (Service Location Protocol Directory Agent) then enter the
Mandatory byte “00” and the IP address <in Hexadecimal> of the Summit WM Controller ESA Port
that will host the Wireless APs (this will be the ESA port with the SLP Option selected).