![background image](http://html.mh-extra.com/html/smc-networks/barricade-smcbr21vpn/barricade-smcbr21vpn_manual_1300291197.webp)
196
Detect Ping of Death Attack:
Select this option to detect the attacks of tremendous trash data in PING
packets that hackers send to cause System malfunction. This attack can
cause network speed to slow down, or even make it necessary to restart the
computer to get a normal operation.
Detect IP Spoofing Attack:
Select this option to detect spoof attacks. Hackers disguise themselves as
trusted users of the network in Spoof attacks. They use a fake identity to
try to pass through the SMC BR21VPN System and invade the network.
Detect Port Scan Attack:
Select this option to detect the port scans hackers use to continuously scan
networks on the Internet to detect computers and vulnerable ports that are
opened by those computers.
Detect Tear Drop Attack:
Select this option to detect tear drop attacks. These are packets that are
segmented to small packets with negative length. Some Systems treat the
negative value as a very large number, and copy enormous data into the
System to cause System damage, such as a shut down or a restart
.
Filter IP Route Option:
Each IP packet can carry an optional field that specifies the replying address
that can be different from the source address specified in packet’s header.
Hackers can use this address field on disguised packets to invade LAN
networks and send LAN networks’ data back to them.
Summary of Contents for Barricade SMCBR21VPN
Page 1: ...Barricade Dual WAN Port Load Balancing VPN Router SMCBR21VPN ...
Page 32: ...31 Figure2 4 Reset Factory Settings ...
Page 60: ...59 Figure3 7 Dynamic IP Address Connection Figure3 8 Complete Dynamic IP Connection Setting ...
Page 76: ...75 it takes only one control policy to achieve the same effect as the 50 control policies ...
Page 90: ...89 Figure7 2 the Flow After Using QoS Max Bandwidth 400Kbps Guaranteed Bandwidth 200Kbps ...
Page 201: ...200 Figure16 4 NetBIOS Alert Notification to Administrator s PC ...
Page 202: ...201 Figure16 5 E mail Virus Alert ...
Page 227: ...226 Figure19 1 Outbound Source IP Statistics Report ...
Page 229: ...228 Figure19 2 Outbound Destination IP Statistics Report ...
Page 231: ...230 Accounting Report ...
Page 234: ...233 Figure19 5 Inbound Top Users Statistics Report ...
Page 236: ...235 Figure19 6 Inbound Destination IP Statistics Report ...
Page 247: ...246 Figure21 1 Interface Status ...
Page 251: ...SMCBR21VPN 20 Mason Irvine CA 92618 Phn 949 679 8000 www smc com ...