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PTP 450 Configuration and User Guide
Security planning
4-46
pmp-0815 (August 2015)
Figure 51
Categorical protocol filtering
BootP
Client
BootP
Server
SNMP
IPv4
Multica
st
User
Defined
Port 1
SMB
User
Defined
Port 3
User
Defined
Port 2
PPPoE
ARP
All
Others
All
Other
IPv4
The following are example situations in which you can configure protocol filtering where
NAT is disabled:
If you block a subscriber from only PPPoE and SNMP, then the subscriber retains
access to all other protocols and all ports.
If you block PPPoE, IPv4 and Uplink Broadcast, and you also check the
All others
selection, then only Address Resolution Protocol is not filtered.