Specifications

Security Options 57
Chapter 5
68 UDP AP (and
Wireless
LAN
Switch if
DHCP
server is
configured
)
DHCP client
69 UDP Wireless
LAN
Switch
TFTP
80 TCP AP and
Wireless
LAN
Switch
HTTP Used for remote packet
capture where the capture is
saved on the Access Point.
Provides access to the WebUI on
the Wireless LAN Switch.
123 UDP Wireless
LAN
Switch
NTP
161 UDP AP and
Wireless
LAN
Switch
SNMP. Disabled by default.
443 TCP Wireless
LAN
Switch
Used internally for captive portal
authentication (HTTPS) and is
exposed to wireless users. A
default self-signed certificate is
installed after the user explicitly
selects this port to be open.
Users in a production
environment are urged to install a
certificate from a well known CA
such as Verisign. Self-signed
certs are open to
man-in-the-middle attacks and
should only be used for testing.
500 UDP Wireless
LAN
Switch
ISAKMP
TABLE 5-1 Default (Trusted) Open Ports (Continued)
Port
Number
Protocol Where Used Description