157
eircom D10
00 modem User’s Guide
Chapter 13 Firewall
13.5.1.1 Threshold Values
If everything is working properly, you probably do not need to change the threshold settings as the
default threshold values should work for most small offices. Tune these parameters when you
believe the Device has been receiving DoS attacks that are not recorded in the logs or the logs
show that the Device is classifying normal traffic as DoS attacks. Factors influencing choices for
threshold values are:
1
The maximum number of opened sessions.
2
The minimum capacity of server backlog in your LAN network.
3
The CPU power of servers in your LAN network.
4
Network bandwidth.
5
Type of traffic for certain servers.
Reduce the threshold values if your network is slower than average for any of these factors
(especially if you have servers that are slow or handle many tasks and are often busy).
• If you often use P2P applications such as file sharing with eMule or eDonkey, it’s recommended
that you increase the threshold values since lots of sessions will be established during a small
period of time and the Device may classify them as DoS attacks.
13.5.2 Configuring Firewall Thresholds
Click
Security > Firewall > DoS > Advanced
to display the following screen.
Figure 108
Security > Firewall > DoS > Advanced
Summary of Contents for eircom D1000
Page 2: ...Copyright 2013 ZyXEL Communications Corporation...
Page 3: ......
Page 12: ...10 eircom D1000 modem User s Guide...
Page 13: ...PART I User s Guide 11...
Page 14: ...12...
Page 18: ...16 eircom D1000 modem User s Guide...
Page 26: ...Chapter 2 Introducing the Web Configurator 24 eircom D1000 modem User s Guide...
Page 27: ...PART II Technical Reference 25...
Page 28: ...26...
Page 78: ...76 eircom D1000 modem User s Guide Chapter 5 Wireless LAN...
Page 110: ...10 8 eircom D1000 modem User s Guide Chapter 6 Home Networking...
Page 126: ...Chapter 8 Quality of Service QoS 124 eircom D1000 modem User s Guide...
Page 136: ...134 eircom D1000 modem User s Guide Chapter 9 Network Address Translation NAT...
Page 148: ...146 eircom D1000 modem User s Guide Chapter 12 Filter...
Page 168: ...Chapter 14 Parental Control 166 eircom D1000 modem User s Guide...
Page 174: ...Chapter 15 Certificates 172 eircom D1000 modem User s Guide...
Page 180: ...178 eircom D1000 modem User s Guide Chapter 17 Traffic Status...
Page 182: ...180 eircom D1000 modem User s Guide Chapter 18 User Account...
Page 184: ...182 eircom D1000 modem User s Guide Chapter 19 System Setting...
Page 187: ...185 eircom D1000 modem User s Guide Chapter 20 Time Setting...
Page 188: ...Chapter 20 Time Setting 186 eircom D1000 modem User s Guide...
Page 196: ...Chapter 23 Backup Restore 194 eircom D1000 modem User s Guide...
Page 210: ...Chapter 25 Diagnostic 208 eircom D1000 modem User s Guide...
Page 216: ...214 eircom D1000 modem User s Guide Chapter 27 LED Descriptions...