Lightning SA MultiCom, User Manual, Page: 165 / 172

Glossary User’s Manual 165
Spoofing
A network attack when the attacker tries to send packets into a network by
changing the source IP address to be that of a known network. Often this is done
by saying the packet is from the LAN network but it arrives on the WAN and asks
for permission to get in. A properly configured firewall will protect against this
sort of access.
Spyware
A piece of software or Internet browser plug-in that makes unrequested contacts
to the Internet to share information. For example, software that contacts the
manufacturers web site each time the program is used, possibly even sending data
about the computer it is running on. Although this is not necessarily a network
attack it is a program that communicates to other programs without the user being
aware of it. Possibly sensitive data could be communicated remotely as well.
Straight Cable
An RJ45 ethernet cable that connects network devices together through a hub.
This will not allow you to connect network devices directly to each other, for that
situation you would use a crossed wire cable.
Subnet
Dividing an TCP/IP network into smaller, equally sized logical networks. By
using what used to be the host part of an IP address a network can seem to be
many smaller networks lessening network traffic caused by broadcasts for
instance.
See RFC950
Syslog Message
These messages are generated by the MultiCom Firewall for the following
reasons: system events, custom filtering rules, DHCP trace activity, PPP trace
activity. For more information see the chapter on Syslog messages in the
Reference Manual.
Syslog Server
A software that collects and stores system events (syslog) messages. Syslog
messages are sent to this server and stored for later reviewing. Some Syslog
servers provide additional utilities such as sending pages or emails to
administrators.