SignaMax SC30010, Справочное руководство CLI

Страница: 306 / 671

Chapter 9
| General Security Measures
Denial of Service Protection
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Example
Console#show ip arp inspection vlan 1
VLAN ID DAI Status ACL Name ACL Status
-------- --------------- -------------------- --------------------
1 disabled sales static
Console#
Denial of Service Protection
A denial-of-service attack (DoS attack) is an attempt to block the services
provided by a computer or network resource. This kind of attack tries to
prevent an Internet site or service from functioning efficiently or at all. In
general, DoS attacks are implemented by either forcing the target to reset, to
consume most of its resources so that it can no longer provide its intended
service, or to obstruct the communication media between the intended users
and the target so that they can no longer communicate adequately.
This section describes commands used to protect against DoS attacks.
Table 59: DoS Protection Commands
Command Function Mode
dos-protection echo-chargen Protects against DoS echo/chargen attacks GC
dos-protection smurf Protects against DoS smurf attacks GC
dos-protection tcp-flooding Protects against DoS TCP-flooding attacks GC
dos-protection tcp-null-scan Protects against DoS TCP-null-scan attacks GC
dos-protection tcp-syn-fin-scan Protects against DoS TCP-SYN/FIN-scan
attacks
GC
dos-protection tcp-xmas-scan Protects against DoS TCP-XMAS-scan attacks GC
dos-protection udp-flooding Protects against DoS UDP-flooding attacks GC
dos-protection win-nuke Protects against DoS WinNuke attacks GC
show dos-protection Shows the configuration settings for DoS
protection
PE