PMP 450 Configuration and User Guide
Task 5: Configuring security
pmp-0050 (May 2012)
2-63
Any or all of the following IPv4 (Internet Protocol version 4) protocols:
o
SMB (Network Neighborhood)
o
SNMP
o
Up to 3 user-defined ports
o
All other IPv4 traffic
Uplink Broadcast
ARP (Address Resolution Protocol)
All others
Figure 11
Categorical protocol filtering
PPPoE
ARP
All Other IPv4
User
Defined
Port 1
IPv4
Multicast
BootP
Server
BootP
Client
SNMP
SMB
User
Defined
Port 3
User
Defined
Port 2
All Others
The following are example situations in which you can configure protocol filtering where NAT is disabled:
If you block a subscriber from only PPoE and SNMP, then the subscriber retains access to all other
protocols and all ports.
If you block PPoE, IPv4, and Uplink Broadcast, and you also check the
All others
selection, then only Address Resolution Protocol is not filtered.
. Further information is provided under
Protocol Filtering Tab of the SM
on Page
Figure 12
Ports filtered per protocol selection
Protocol
Selected
Port Filtered (Blocked)
SMB
Destination Ports 137 TCP and UDP, 138 UDP, 139 TCP, 445 TCP
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