Glossary
IP (Internet Protocol)
A protocol for transporting data packets over the internet.TCP (Transmission Control Protocol)
A layer above the IP layer. TCP is a connection-oriented and reliable protocol, used by many applications in the layer above for a better control of the transmission.ISP (Internet Service Provider)
The organization that gives his subscribers the opportunity to use the Internet.SNMP (Simple Network Management Protocol)
Used for configuration of devices through the network.ESP (Encapsulating Security Payload)
An IP extension header which specifies how the data in the packet is encrypted.SPI (Security Parameters Index)
A 32 bit field that identifies an agreed security handling for an IP packet. SPI field is included in The authentication and the encryption headers.DES (Data Encryption Standard)
The IP standard for data encryption. The standard determines how encrypted data should be identified and a number of standard encryption algorithms that are included in the IPv6 protocol stack.Flow
In IP terms, a stream of information identified by a combination of the source address and the value of the Flow field in the IP header. The Flow field value should imply what kind of information is carried on that flow. Accordingly, the router will know how to handle the flow's packets.RSVP (Resource Reservation Protocol)
A protocol that ensures a constant bit rate between a source and a target by exclusivly reserving resources for their communication.DHCP (Dymanic Host Configuraion Protocol)
A protocol that automatically configures TCP/IP settings for hosts. A DHCP server leases an IP address to each host for a fixed period of time.LAN (Local Area Network)
Number of computers connected physically, positioned relatively close to each other.WAN (Wide Area Network)
A physical network for long distances, usualy connecting between several local networks (LANs).Broadcast
Type of address that used for sending packets to everyone in the network.Multicast
Type of address that enables someone to send packets to a defined group of destinations and only for that group.Unicast
Type of address that used for sending packets to a unique destination.RIP (Routing Information Protocol)
A protocol that creates and maintains routing tables to route packets over the internet in an efficient way.OSPF (Open Shortest Path First)
Technique for finding the shortest path from node to his neighbors using the Dijkstra algorithm.CIDR (Classless Inter Domain Routing)
Routing technique that prevents routing table explosion.Datagram
Packet of informatoin transported using IP.ICMP (Internet Control Message Protocol)
An IP protocol used for sending messages that carry error and control information.
