Special Features; Startup Procedure; Auto Logout; Prevention Of Denial-Of-Service Attacks - BinTec X4100 User Manual

Special Features

9.4 Special Features
The following special features support your network security:

Startup Procedure

Auto logout

(chapter 9.4.2, page

Prevention of Denial-of-Service Attacks

9.4.1 Startup Procedure
X4100/200/300 does not start its routing activities until the complete configura-
tion is loaded, especially the defined filters. This means it is not possible to pro-
voke a system start to make use of an intermediate system state in which
perhaps routing takes place before the filters are active.
9.4.2 Auto Logout
Connections to X4100/200/300
are disconnected automatically if no entry is made on the keyboard for a period
of 15 minutes. This makes it difficult to read out or change the system configu-
ration on "forgotten" connections. You can change the time with the command
t <time in seconds> (see
9.4.3 Prevention of Denial-of-Service Attacks
A Denial-of-Service (DoS) attack is an attempt to flood a system or force a re-
start by sending certain packets. This means the system or a certain service can
no longer be used.
Some Denial-of-Service attacks on the router itself are already prevented by the
internal coding.
For example, all X4100/200/300
dress Translation (NAT) protect the connected PCs against some DoS attacks
(chapter 9.4.1, page 347)
347)
(chapter 9.4.3, page
via telnet,
chapter 13.1, page
interfaces for which you activate Network Ad-
X4100/200/300
347)
ISDN Login or serial interface
392).
User's Guide
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