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Summary: Project Plan
TCP/IP4 hails from a previous generation almost in that there are many
limitations associated with it. For example, the total number of IP addresses that can be
instituted are nearly 4 billion (256*256*256*256 = 4,294,967,296 addresses). These
addresses are nearly depleted as the network expands and goes into rural areas and other
remote far flung areas which were never imagined to have internet access. Public IPs are
only a few hundred million.
Security
Security with data transmission was a challenge in the earlier times with IP4.
Only recently, have we instituted encryption for IP4 transmissions. This security, also
called internet protocol security is again an added, optional feature in IP4.
Larger Routing Tables
The routing system in the IP4 scheme is flat and hierarchical. Network ID
allocation is important and there already are 87000 routes in the tables today.
Quality of Service
Quality of service is called into question when we see the kind of information
exchange going today. We have VoIP, video chat, online video libraries and these
services require for blazing fast, real time transfer of data. Here in IP4 has limited
functionality
IP6
Ipv6 can definitely eliminate some of the biggest issues with IP4. The number of
addresses that can be mapped here is far greater because the technology is based on 128
bits. The header in this case is processed far more easily because some non-essential
fields have been moved. There can be several levels of sub-netting and address
allocations. Ipv6 technology also reduces the routing table size of backbone routers.
Security features are also not optional as they are built in here. Quality of service is
higher as well (Pan, Xiao & Xiao, 2005).

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