| Exam 200-355 | Question id=2297 | Operating a Wireless Network |
A WLAN deployment uses a combination of Cisco Aironet 1260 APs and multiple Cisco 5500 Wireless LAN Controllers to provide wireless LAN access to end-users. The network administrator has decided to use DHCP Option 43 to enable the APs to discover the wireless LAN controllers. When configuring the DHCP scope, which format should be used for the Cisco WLC addresses?
| A. |
a comma-separated ASCII string of Cisco WLC AP-manager addresses | |
| B. |
a comma-separated ASCII string of Cisco WLC management addresses | |
| C. |
a comma-separated ASCII string of Cisco WLC virtual IP addresses | |
| D. |
a hexadecimal string of Cisco WLC AP-manager addresses | |
| E. |
a hexadecimal string of Cisco WLC management addresses | |
| F. |
a hexadecimal string of Cisco WLC virtual IP addresses |
Complete these steps in order to configure DHCP Option 43, in the embedded Cisco IOS DHCP server, for all Cisco Aironet APs that run Cisco IOS. This includes
all APs except for the VxWorks 1000 Series (see the next section) and the 600 Series OEAP which does not use Option 43.
ip dhcp pool <pool name>
network <ip network> <netmask>
default-router <default-router IP address>
dns-server <dns server IP address>
option 43 hex <hexadecimal string>
The hexadecimal string in step 3 is assembled as a sequence of the TLV values for the Option 43 suboption: Type + Length + Value. Type is always the suboption
code 0xf1. Length is the number of controller management IP addresses times 4 in hex. Value is the IP address of the controller listed sequentially in hex.