TMS zl Management and Configuration Guide ST.1.1.100226

B-15
Glossary
inter-VLAN Between different VLANs.
Internal The Internal zone. A zone on the internal network.
intra-chassis
failover
A failover scheme in which the members of an HA cluster fail over to other
members in the same host chassis.
intra-VLAN Within the same VLAN.
intrusion
detection
See IDS.
intrusion
prevention
See IPS.
IP address object An address object that contains up to 100 individual, non-contiguous IP
addresses.
IP address pool A range of IP addresses that is reserved for a specific purpose, such as NAT or
VPN traffic.
IP compression The process by which IP packets are made shorter through the use of a
compression algorithm.
IP range address
object
An address object that contains up to 100 ranges of contiguous IP addresses.
IP reassembly The reconstruction of fragmented IP packets by a router before forwarding
them to their destination.
IP reassembly
attack
An attack that degrades network performance by exploiting the network’s IP
reassembly guidelines.
IP spoofing Creating packets with a forged IP address. IP spoofing is used to conceal an
attacker’s IP address or to deceive network devices into thinking a packet
originated from a trusted IP address.
IPDS Another name for IDS/IPS.
IPS Intrusion Prevention System. A network device that can prevent network
attacks before they begin or stop an attack in progress.
IPS port map A list of which port(s) an application runs on.
IPsec Internet Protocol security. A suite of protocols that are used to establish a
VPN tunnel between devices that communicate over the Internet, thereby
protecting their data. For more information, see the IPsec Working Group
home page at http://www.ietf.org/html.charters/OLD/ipsec-charter.html.