User Guide

PMP 450 Planning Guide
The ports that are filtered as a result of protocol selections in the Protocol Filtering tab of the SM are listed in
Table 59.
Table 59 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
Port Lockdown
Cambium devices support access to various communication protocols and only the ports required for these
protocols are available for access by external entities. Operators may change the port numbers for these
protocols via the radio GUI or SNMP.
Table 60 Device default port numbers
Port Usage Port Usage Device
21 FTP Listen Port AP, SM
80 HTTP Listen Port AP, SM
1812 Standard RADIUS port Destination Port AP
1813 Standard RADIUS accounting
port
Destination Port AP, SM
161 SNMP port Listen Port AP, SM
162 SNMP trap port Destination Port AP, SM
514 Syslog Destination Port AP, SM
Isolating SMs
In an AP, you can prevent SMs in the sector from directly communicating with each other. In CMMmicro
Release 2.2 or later and the CMM4, you can prevent connected APs from directly communicating with each
other, which prevents SMs that are in different sectors of a cluster from communicating with each other.
In the AP, the SM Isolation parameter is available in the General tab of the Configuration web page. In the
drop-down menu for that parameter, you can configure the SM Isolation feature by any of the following
selections:
• Disable SM Isolation (the default selection). This allows full communication between SMs.
• Block SM Packets from being forwarded. This prevents both multicast/broadcast and unicast SM-to-SM
communication.
pmp-0047 (March 2014)
1-135