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•
Protocol 97 and TCP/UDP Port 33333 traffic is allowed between BSAPs and the BSC
Each BSAP will receive its IP address from your existing network DHCP server.
The BSAP also needs the IP address of the home BSC to which it will connect and from
which it will obtain its software image and configuration. You can provide the home BSC
IP address to a BSAP using one of the following methods:
•
DHCP Server Option 43 - You can manually configure the DHCP server on your
network to send BSC IP addresses to BSAPs using DHCP vendor-specific option 43.
In DHCP requests sent from the BSAP, the BSAP uses option 60 Vendor class identifier
with a value of BlueSecure.AP1500 to identify itself to the DHCP server.
Refer to the documentation supplied with your DHCP server when configuring vendor-
specific option 43. Also, refer to Appendix B, "Configuring DHCP Server Option 43"
for examples of how vendor-specific option 43 may be configured on DHCP servers.
•
DNS Server Configuration - BSAPs are factory configured with apdiscovery as the
DNS hostname. You can configure a DNS server on your network with an entry for
apdiscovery with the home BSC Controller IP address as the resolution.
To configure this, add a NAME record to the DNS server for apdiscovery (at the
domain server that the BSAP will receive). Point this name to one or more BSC IP
addresses (managed, protected or VLAN depending on the network configuration).
So for example, if there are two BSCs (192.168.100.23 and 192.168.100.28),
and the domain is customer.com, add two NAME records to customer.com, for the
name apdiscovery.customer.com. One should resolve to 192.168.100.23 and one
to 192.168.100.28. PTR (i.e., pointer) records are not needed for this portion of
discovery.
How a BSAP Discovers BSCs
The process that a BSAP uses to discover and connect to its home BSC is two phase:
•
the BSAP discovers the BSCs to which it may connect
•
the BSAP selects one of these discovered BSCs as its home BSC
There are five methods that a BSAP may use to discover a BlueSecure Controller to which
it may connect:
The BSAP will connect to the BSC IP address that has been manually configured using
1.
the BSAP CLI.
See the
manually configure the BSAP's network settings.
The BSAP will connect to the BSC IP address that it has stored in memory from its last
2.
successful BSC discovery.
The BSAP will query the last BSC that assigned it a DHCP address.
3.
You can run a DHCP server or a DHCP relay agent on the BSC to assign IP addresses
to BSAPs on the managed side.
The BSAP will connect to the BSC IP address that it has received via DHCP vendor
4.
option 43 field sent from a network DHCP server to specify one or more BSC IP
addresses.
The BSAP will use a DNS request to a DNS central server to learn, by name, about
5.
one or more BSCs configured with the home BSC Controller IP address as the
resolution for apdiscovery (the default BSAP DNS hostname).
The above order lists the precedence that is used for BSC discovery by a BSAP. If one
discovery method fails to work, then the next is tried.
BlueSecure™ Controller Setup and Administration Guide
BlueSecure Access Point Installation Guide
How a BSAP Discovers BSCs
for details about using the CLI to
12-5
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