IPv6 provides superior data security, which includes end-to-end support for user
authentication, data integrity and data encryption.
Security in IPv4 networks is limited to tunnelling between two networks. Also,
it is impossible to deploy end-to-end security mechanisms in many IPv4 networks,
because of the widespread use of NAT. To achieve local network security in IPv4,
the firewall or/,or filtering is used.
3 Measurements using IPv4 and IPv6 protocol
3.1 Introduction
The measurement of IP packet transmission delay and jitter is becoming
increasingly important, because these parameters are significant parameters for
the quality of service.
There are many measurement solutions designed for distributed IP traffic and
quality of service measurements such as volume, one-way-delay, jitter and packet
loss. Examples of these measurement solutions are: the METEOR Internet
Measurement Platform (IMP), Open IMP (Open Internet Measurement Project) - Open
Source Measurement Solution [4] and NLANR/AMP (National Laboratory for Applied
Network Research/Active Measurement Project).
Internet Measurement Platform (IMP) consists of: passive meters, active meters,
a data collector, and an evaluation server. The main features of IMP are [4]:
-
Measurement of IPv4 and IPv6 traffic
-
Non-intrusive single- and multi-point measurements
-
Variety of metrics (volume, delay, loss, jitter, packet capturing, etc.)
-
Analysis of IP and higher-layer traffic characteristics (e.g. TCP, HTTP)
-
Resource-efficient measurements
-
Visualization of results
-
Web-based management interface
Open Internet Measurement Project (OpenIMP) consists of two passive meters
and a QoS computation server for the calculation of the delay. OpenIMP has the
following abilities [4]:
-
Packet capturing
-
Volume (packet and byte count)
-
Non-intrusive IP one-way-delay measurements
