Quantum scalar i2000 User Manual page 201

Scalar i2000 User's Guide
• ICMP — To prevent external attempts to discover the library by
pinging it (by means of Internet Control Message Protocol
[ICMP] Echo packets), select Disable. Using this setting can
prevent denial-of-service (DoS) attacks, which can flood the
library with pings and cause loss of network connectivity and
services.
If Dynamic Host Configuration Protocol (DHCP) is enabled for your
library on the Network Configuration dialog box (Setup→ Network
Configuration), you also should enable ICMP. This ensures that the
DHCP server can determine whether the IP address that is assigned to the
MCB is still valid. (ICMP is enabled by default.)
3 If you want to apply the changes, but you do not want to close the
dialog box, click Apply. Otherwise, click OK to apply the changes
and close the dialog box.
Chapter 4 Configuring Your Library
Configuring Library Security
188