ATL Telecom R1-SW Ethernet Switch - Manual (Page 221)

Configuring Security
10-11
Configuring Packet Filtering
Packet filtering can help limit network traffic and restrict network use by certain users or
devices. This section describes packet filtering feature on the Corecess R1-SW24L2B.
Packet Filtering
Type of Packet Filtering
The Corecess R1-SW24L2B supports the following types of packet filtering:
DHCP Packet Filtering
Filters DHCP Offer packets received from hosts to prevent the hosts from operating host’s private DHCP
server.
File and Resource Sharing Protocol Filtering
Filter the following protocols to prevent file and resource sharing among hosts in the same
VLAN.
- Apple FileSharing Protocol
- Rendezvous Protocol
- NetBIOS Protocol
- UpnP (Universal Plug & Play) Protocol
Default Traffic Filtering
Filter default traffic that is not classified by class map.
Broadcast Packet Filtering
Filter broadcast packets of a particular port to prevent unnecessary broadcast packets from
hosts.
CIFS (Cognitive Information Filtering System)
Filters the particular class of traffic based on the following criteria:
- CoS field value
- ToS field value
- IP precedence field value
- DSCP field value
- The TCP flag