Intellinet 524803 User Manual page 112

Below are descriptions of the options:
Ping of Death (1): Ping of Death is a special packet, and it will
Discard Ping
From WAN (2):
Port Scan (3):
Sync Flood (4):
cause certain computers to stop responding.
Check this box and the router will filter this kind
of packet out.
Ping is a common and useful tool for learning
the connection status of a specified remote
network device. A malicious intruder may try to
fill your network bandwidth with a lot of PING
request data packets to make your Internet
connection become very slow, even unusable.
Check this box and the router will ignore all
inbound PING requests. When you activate this
function, however, you will not be able to ping
your own router from the Internet.
A malicious intruder may try to use a port
scanner to learn how many ports of your
Internet IP address are open. They can collect a
lot of valuable information by doing so. Check
this box and the router will block all traffic that is
trying to scan your Internet IP address.
This is another kind of attack that uses a lot of
fake connection requests to consume the
memory of your server, trying to make your
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