Information Technology Reference
In-Depth Information
H-REAP operates in two security modes:
Standalone mode:
H-REAP does the client authentication itself when the WLC
cannot be reached. In standalone mode, H-REAP supports WPA-PSK and WPA2-PSK
for client authent ic at ion.
■
Connected mode:
The device uses the WLC for client authentication. In connected
mode, H-REAP supports WPA-PSK, WPA2-PSK, VPNs, L2TP, EAP, and web authen-
tication for client authentication.
■
H-REAP is delay sensitive. The RTT must not exceed 300 ms between the AP and the
WLC. And, CAPWAP must be prioritized over other traffic.
Branch Office Controller Options
For branch offices, Cisco recommends one of four options:
Cisco 2100 series:
Supports up to 25 APs.
■
Cisco 4402-12 and 4402-24:
These devices support 12 and 24 APs, respectively.
■
WLC Module in Integrated Services Router (ISR):
Supports up to 25 APs.
■
3750 with WLAN controller:
Depending on the model, this can support 25 or 50 APs.
■
The following points summarize WLAN design:
An RF site survey is used to determine a wireless network's RF characteristics and AP
placement.
■
Guest services are easily supported using EoIP tunnels in the Cisco Unified Wireless
Network.
■
Outdoor wireless networks are supported using outdoor APs and Cisco wireless
mesh networking APs.
■
Campus wireless network design provides RF coverage for wireless clients in the cam-
pus using LWAPs. The LWAPs are managed by WLCs.
■
Branch wireless network design provides RF coverage for wireless clients in the
branch. Central management of REAP or H-REAP APs can be supported.
■
Each AP should be limited to 20 data devices on a data WLAN.
■
For voice over w ireles s desig n, it is recommended that a separate S SID be used for
voice and that each AP support roughly seven (G.711) to eight (G.729) voice calls over
Vo W L A N . T h i s i s b e c a u s e a l l d e v i c e s s h a r e b a n d w i d t h .
■
Ta ble 5 -1 3 provides a quick summary of the UDP ports used by wireless protocols.
Ta b l e 5 -1 3
UDP Ports Used by WLAN Protocols
WLAN Protocol
UDP Port
LWA P P c o n t r o l
UDP 12223
LWA P P d a t a
UDP 12222
