Table of Contents
Advertisement
DIR-615 Wireless N300 Router
User Manual
Move the relevant switches to the right. In the threshold field corresponding to the switch, specify
the maximum number of packets which arrive from one IP address within one second. The value of
the field should be greater than zero (for example, 200). Then, in the Other Settings section,
move the Block source IP switch to the right, and in the Block time field, specify the time
period (in seconds) during which the source IP address will be blocked. For example, you can
specify 120. When the threshold value is exceeded, the source of packets will be blocked for the
specified time period.
In the Other Settings section, you can activate additional protection methods.
Parameter
TCP/UDP port scan
IP Land
IP Spoof
IP TearDrop
TCP scan
TCP/SYN with data
UDP Bomb
Block source IP
After specifying the needed parameters, click the APPLY button.
Blocks the source of TCP or UDP packets which check the ports
state if the router receives more than 200 requests per second from
one IP address. The source of packets will be blocked during the
time period specified in the Block time field (the field is displayed
if the Block source IP switch is moved to the right).
If the switch is moved to the right, the High sensitivity switch is
displayed on the page. Activate the setting to let the router block the
source if it sends more than 10 requests per second.
Blocks TCP packets with the SYN flag in which the source IP
address and port coincides with the destination IP address and port.
Block packets in which the source IP address coincides with the
router's LAN IP address.
Blocks fragmented IP packets if errors can occur upon assembling
these packets.
Blocks TCP packets with invalid flags.
Blocks TCP packets with the SYN flag if they are fragmented or
contain data.
Blocks UDP packets if they contain incorrect service data.
Move the switch to the right to block the sources of packets
protection against which is activated in the Other Settings section
for a certain time period. Then, in the Block time (sec) field
displayed, specify the needed value (in seconds).
Page 113 of 176
Configuring via Web-based Interface
Description
Advertisement
Table of Contents
