ZyXEL Communications NWA3160 User Manual
Chapter 5 Management Mode
ZyXEL NWA-3160 Series User’s Guide
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2 The AP sends out a management request, looking for an AP in CAPWAP AP controller
mode.
3 If there is an AP controller on the network, it receives the management request. If the AP
controller is in Manual mode (see
) it adds the details of the AP
to its Unmanaged Access Points list (see
), and you decide
which available APs to manage. If the AP is in Always Accept mode, it automatically
adds the AP to its Managed Access Points list and provides the managed AP with
default configuration information, as well as securely transmitting the DTLS (Datagram
Transport Layer Security) pre-shared key. The managed AP is ready for association with
wireless clients.
adds the AP to its Managed Access Points list and provides the managed AP with
default configuration information, as well as securely transmitting the DTLS (Datagram
Transport Layer Security) pre-shared key. The managed AP is ready for association with
wireless clients.
5.1.2 CAPWAP and DHCP
CAPWAP managed APs must be DHCP clients, supplied with an IP address by a DHCP server
on your network.
Furthermore, the AP controller must have a static IP address; it cannot be a DHCP client.
on your network.
Furthermore, the AP controller must have a static IP address; it cannot be a DHCP client.
5.1.3 CAPWAP and IP Subnets
By default, CAPWAP works only between devices with IP addresses in the same subnet (see
the appendices for information on IP addresses and subnetting).
However, you can configure CAPWAP to operate between devices with IP addresses in
different subnets by doing the following.
the appendices for information on IP addresses and subnetting).
However, you can configure CAPWAP to operate between devices with IP addresses in
different subnets by doing the following.
• Activate DHCP option 43 on your network’s DHCP server.
• Configure DHCP option 43 with the IP address of the CAPWAP AP controller on your
• Configure DHCP option 43 with the IP address of the CAPWAP AP controller on your
network.
DHCP Option 43 allows the CAPWAP management request (from the AP in managed AP
mode) to reach the AP controller in a different subnet, as shown in the following figure.
mode) to reach the AP controller in a different subnet, as shown in the following figure.
Figure 45 CAPWAP and DHCP Option 43
SUBNET 1
SUBNET 2
AP
CONTROLLER
MANAGED
AP
DHCP
SERVER
+ OPTION 43
SERVER
+ OPTION 43
CAPWAP
TRAFFIC
(DYNAMIC
IP)
(STATIC IP)