Technical data

5.6 Firewall 107
PING Behavior
Enable one or both option(s).
• Discard PING forwarding : Suppress the transmission of ping
packets via the HorstBox.
• Discard PING from internet to gateway : Suppress the trans-
mission of ping packets from the Internet to the HorstBox.
Figure 5.15: Firewall options: PING behaviour
Protection against DoS attacks
With DoS attacks, the offender tries to prevent legal users from
accessing a service. In the most trivial case, this is reached by
flooding the server with meaningless packets thus blocking the
line capacity. A typical example is ICMP flooding, i.e. the flooding
of the network with a great number of ICMP protocol packets.
Activate the option Enable DoS protection.