User's Manual

Port
Number
Protocol Where Used Description
67 UDP AP (and
controller if
DHCP server is
configured)
DHCP server.
68 UDP AP (and
controller if
DHCP server is
configured)
DHCP client.
69 UDP controller TFTP
80 TCP AP and
controller
HTTP Used for remote packet capture where the capture
is saved on the Access Point. Provides access to the
WebUI on the controller.
123 UDP controller NTP
161 UDP AP and
controller
SNMP. Disabled by default.
443 TCP controller Used internally for captive portal authentication (HTTPS)
and is exposed to wireless users. A default self-signed
certificate is installed in the controller. 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.
Required for VIA: During the initializing phase, VIA uses
HTTPS connections to perform trusted network and
captive portal checks against the controller. It is
mandatory that you enable port 443 on your network to
allow VIA to perform these checks
500 UDP controller ISAKMP
514 UDP controller Syslog
1701 UDP controller L2TP
1723 TCP controller PPTP
2300 TCP controller
Internal terminal server opened by telnet soe
command.
3306 TCP controller Remote wired MAC lookup.
4343, 443 TCP controller HTTPS.Both port 4343 and 443 are supported. If port
4343 is used it redirects to port 443. If port 443 is used it
continues to connect using this port. A default self-signed
certificate is installed in the controller. 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
4500 UDP controller sae-urn
Dell Networking W-Series ArubaOS 6.4.x | User Guide Behavior and Defaults | 1053