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More than one BSC IP address can be specified, separated by commas or semi-colons.
The length (up to 255) can contain up to 15 IP addresses. The following example shows
two BSC IP addresses (192.168.160.1 and 40.4.4.1) - 2C is a comma:
if option vendor-class-identifier = "BlueSecure.AP1500" {
7F:16:31:39:32:2E:31:36:38:2E:31:36:30:2E
:31:2C:34:30:2E:34:2E:34:2E:31;
}
Configuring a Cisco IOS DHCP Server
The Cisco IOS DHCP server only allows Option 43 definitions for one device type for
each DHCP address pool, so only one AP type can be supported for each DHCP address
pool. Complete these steps in order to configure DHCP Option 43 for BSAPs in the
embedded Cisco IOS DHCP server:
Enter configuration mode at the Cisco IOS command line interface (CLI).
1.
Create the DHCP pool, which includes the necessary parameters, such as the default
2.
router and server name. This is an example DHCP scope:
ip dhcp pool <pool name>
network <ip network> <netmask>
default-router <default-router IP address>
dns-server <dns server IP address>
Add the Option 60 line with this syntax:
3.
option 60 ascii "BlueSecure.AP1500"
Add the Option 43 line with this syntax:
4.
option 43 hex <hexadecimal string>
The hexadecimal string is assembled as a sequence of the TLV values for the Option
43 sub-option: Type + Length + Value. Type is always the sub-option code 0x7f
(decimal 127). Length is the number of controller Protected IP addresses times 4 in
hex. Value is the IP address of the controller listed sequentially in hex.
For example, suppose there are two controllers with protected interface IP addresses,
192.168.10.5 and 192.168.10.20. The type is 0x7f. The length is 2 * 4 = 8 =
0x08. The IP addresses translate to c0a80a05 (192.168.10.5) and c0a80a14
(192.168.10.20). When the string is assembled, it yields
7f08c0a80a05c0a80a14. The Cisco IOS command that is added to the DHCP
scope is:
option 43 hex 7f08c0a80a05c0a80a14
BlueSecure™ Controller Setup and Administration Guide
option vendor-encapsulated-options
B-7
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