User guide

Managing Your Canopy Network March 2005
Through Software Release 6.1
Issue 1 Page 305 of 425
Canopy System User Guide
The ports that are filtered as a result of protocol selections in the Packet Filter
Configuration block of the Advanced Network Configuration page in the SM are listed in
Table 52.
Table 52: Ports filtered per protocol selections
Protocol
Selected
Port Filtered (Blocked)
SMB
Destination Ports 137 TCP and UDP,
138 UDP, 139 TCP, 445 TCP
SNMP
Destination Ports 161 TCP and UDP,
162 TCP and UDP
Bootp Client Source Port 68 UDP
Bootp Server Source Port 67 UDP
22.6 ENCRYPTING DOWNLINK BROADCASTS
In Canopy System Release 4.2 and later releases, an AP can be enabled to encrypt
downlink broadcast packets such as the following:
◦ ARP
◦ NetBIOS
◦ broadcast packets containing video data on UDP.
However, before the Encrypt Downlink Broadcast feature is enabled on the AP
◦ air link security should be enabled on the AP.
◦ all SMs that register to the AP must operate on Release 4.2 or later release.
CAUTION!
An SM that operates on an earlier release cannot decrypt encrypted
broadcasts and, consequently, drops connectivity (or cannot establish a
link with) with the AP that is configured to encrypt downlink broadcasts.
The encryption used is DES for a DES module, and AES for an AES module.