Dell PowerConnect W-IAP92 Dell Instant 6.1.3.4-3.1.0.0 User Guide - Page 232

Centralized L2 DHCP Configuration, Table 44

Page 232 highlights

Figure 211 Distributed L3 DHCP Configuration Centralized L2 DHCP Configuration In Centralized L2 mode, both the DHCP server and default gateway are in the data center, on the other side of the VPN tunnel. 1. Click New in the DHCP Server window and select Centralized, L2 to configure the following parameters for Distributed L3 mode DHCP pool:  Name - Name of the subnet (must be unique).  Type- Indicates the type of DHCP server. Available options are Local, Distributed L3, Distributed L2, Centralized L2. Centralized, L2 implies that this is a Centralized mode L2 DHCP subnet.  VLAN- VLAN ID of the subnet. This needs to be referenced in the SSID configuration to make use of this subnet.  DHCP RelayDHCP Relay Agent and Option 82- Select to enable or disable these features. When a DHCP server is configured with a DHCP Relay agent, the client's Broadcast DHCP Discover packet is not sent to the corporate network, instead the Virtual Controller acts as the DHCP Relay and unicasts DHCP packets to the corporate DHCP server. Enable DHCP Option 82 to allow clients to send DHCP packets with the Option 82 string. The Option 82 string is available only in the Alcatel (ALU) format. The ALU format for the Option 82 string consists of the following:  Remote Circuit ID - AP-MAC; SSID; SSID-Type  Remote Agent - IDUE-MAC NOTE: The Option 82 is specific to Alcatel and is not configurable in this version of Instant. The following table describes the behavior of DHCP Relay Agent and Option 82 in the IAP. Table 44 Ports used by the Apple Facetime Application DHCP Relay Option82 Behavior Enabled Enabled DHCP packet relayed with the ALU-specific Option 82 string 232 | VPN Configuration Dell PowerConnect W-Series Instant Access Point 6.1.3.4-3.1.0.0 | User Guide

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232
|
VPN Configuration
Dell PowerConnect W-Series Instant Access Point 6.1.3.4-3.1.0.0
| User Guide
Figure 211
Distributed L3 DHCP Configuration
Centralized L2 DHCP Configuration
In Centralized L2 mode, both the DHCP server and default gateway are in the data center, on the other side of
the VPN tunnel.
1.
Click
New
in the
DHCP Server
window and select
Centralized, L2
to configure the following parameters for
Distributed L3 mode DHCP pool:
Name — Name of the subnet (must be unique).
Type— Indicates the type of DHCP server. Available options are Local, Distributed L3, Distributed L2,
Centralized L2.
Centralized, L2
implies that this is a Centralized mode L2 DHCP subnet.
VLAN— VLAN ID of the subnet. This needs to be referenced in the SSID configuration to make use of
this subnet.
DHCP RelayDHCP Relay Agent and Option 82— Select to enable or disable these features.
When a DHCP server is configured with a DHCP Relay agent, the client's Broadcast DHCP Discover
packet is not sent to the corporate network, instead the Virtual Controller acts as the DHCP Relay and
unicasts DHCP packets to the corporate DHCP server. Enable DHCP Option 82 to allow clients to send
DHCP packets with the Option 82 string.
The Option 82 string is available only in the Alcatel (ALU) format. The ALU format for the Option 82
string consists of the following:
Remote Circuit ID — AP-MAC; SSID; SSID-Type
Remote Agent — IDUE-MAC
The following table describes the behavior of DHCP Relay Agent and Option 82 in the IAP.
NOTE:
The Option 82 is specific to Alcatel and is not configurable in this version of Instant.
Table 44
Ports used by the Apple Facetime Application
DHCP Relay
Option82
Behavior
Enabled
Enabled
DHCP packet relayed with the ALU-specific Option 82 string