3Com LINKBUILDER MSH 4 PORT ETHERNET BRIDGE MODULE Network Hardware User Manual


 
DUA1860-0AAA01
Bridge Filters 1-27
Changes made to port-to-port filter sets are mirrored by the other
port-to-port filter sets. For example, if ports 1 and E are added to
port 3's filter set, port 3 is automatically added to port 1's and
port E's filter sets.
Multicast-to-Port Filtering
A
multicast-to-port
filter set is a group of ports that are allowed
to send and receive broadcast and multicast packets from a
specific bridge port. There is a multicast-to-port filter set for each
bridge port.
The multicast-to-port filter sets operate in exactly the same
manner as the port-to-port filter sets, the only difference being
that multicast-to-port filter sets are used for broadcast and
multicast packets only.
Protocol Filtering
A
protocol
filter set is a group of network protocol filters for
which the bridge will permit or deny the forwarding of packets to
a specific bridge port. There is a protocol filter set for each bridge
port.
For example, if you want to prevent packets using the TCP/IP
protocol from being forwarded to the network segment
connected to port 2, you would edit port 2's protocol filter set to
deny the TCP/IP protocol.