TMS zl Management and Configuration Guide ST.1.1.100226

B-14
Glossary
IE Microsoft’s Internet Explorer browser.
IETF Internet Engineering Task Force. An organization that promotes LAN and
other networking standards. See www.ietf.org.
IGMP Internet Group Management Protocol. A protocol used by hosts and multicast
routers to establish and manage IP multicast groups.
IGP Interior Gateway Protocol. Routing protocols such as RIP and OSPF that are
designed to operate in a single AS.
IKE Internet Key Exchange. A protocol that mutually authenticates two parties
attempting to establish an IPsec VPN and establishes an IKE SA and a set of
cryptographic algorithms that will be used to protect VPN traffic.
IKE mode The mode in which IKE is initiated. The two IKE modes are Main mode and
Aggressive mode.
IKE mode config The process through which the remote addresses of a client-to-site VPN are
assigned local addresses.
IKE phases IKE uses two phases to establish an IPsec SA. In the first phase IKE negotiates
security parameters for the IKE SA, generates the keys used to secure data
sent over the IKE SA, and authenticate the endpoints of the tunnel. In the second
phase IKE negotiates the IPsec SA.
IKEv1 policy The policy that the TMS zl Module uses to carry out IKE phase 1 when
establishing an IPsec VPN.
inactivity timeout The timeout applied to an authenticated user.
inbound
authentication
key
The manual authentication key that a local device expects to receive from a
remote device when establishing a VPN.
inbound
encryption key
The manual encryption key that a local device expects to receive from a
remote device when establishing a VPN.
initiator On a VPN tunnel, the initiator starts the VPN negotiation and proposes the
parameters.
insert position
The position at which a policy is inserted.
integrity check
value
See ICV.
inter-chassis
failover
A failover scheme in which the members of an HA cluster fail over to other
members in the different host chassis.