Netgear WC7600v2 – ProSAFE Wireless Controller 사용자 설명서

If a network loop occurs, make sure that you did not connect a GBIC and the Ethernet port on 
the wireless controller (or two GBICs on the wireless controller) to the same network switch. 
Make only a single connection from a wireless controller to a network switch.

If you encounter access point discovery or connection problems, the information in this 
section might help you to resolve these problems.

If the wireless controller does not discover any or all access points, check the configuration of 
the wireless controller and access points.

For all access points, check the following:

Make sure that the wireless controller is connected to the LAN (see 

Make sure that you enter the correct IP range if the access points function in different 
VLANs, are behind an IP subnet, or are already installed and working in standalone mode 
(see 

Make sure that the access points run at least their initial firmware release or a newer 
version. For firmware requirements, see 

For local access points that are installed across a Layer 3 network, check the following:

Enable SNMP and SSH on all standalone access points. (This is the default setting for 
access points.)

Unblock UDP port number 7890 in the firewall.

Assign each access point a unique IP address. (This requirement does not apply to 

access points in the factory default state that are in the same Layer 2 network.) If two or 
more access points are assigned the same IP address, only one of them is discovered at 
a time. You must add the access point to the managed list, change its IP address, and 
run discovery again to discover the next access point with that IP address.

Enable DHCP option 43 (vendor-specific information) on an external DHCP server. 
Specifying an internal DHCP server on the wireless controller automatically enables 
DHCP option 43 with the IP address of the wireless controller.