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80 IPv4 N IPv6 N IPv4 B IPv6 B Combined bandwidth in Mbps 60 40 20 0 0 10 20 30 40 50 60 70 80 90 100 Node count Figure 6.15: Combined bandwidth in Mbps/s with a node at the border during heavy traffic 70 60 IPv4 N IPv6 N IPv4 B IPv6 B Combined bandwidth in Mbps 50 40 30 20 10 0 0 10 20 30 40 50 60 70 80 90 100 Node count Figure 6.16: Combined bandwidth in Mbps/s with a node at the border during network scan Impact of IPv6 on WiFi-based networks Page 44
Conclusion The effect of broadcast messages forcing the entire network to use a slow data rate when a single node requires it has a strong effect on the bandwidth test. As seen in the first experiment the amount of multicast/broadcast control packets is strongly correlated to the node count Especially the multicast control traffic generated by IPv6 cripple the network performance as a great part of available air time is consumed by those multicast packet transmissions. The IPv4 network does not shine in this experiment but has a distinct advantage over IPv6 with a large amount of nodes. 6.3.4 Divide nodes The ARP vs NDP and Bandwidth tests already included results of test setup B and C. To clarify the effect on the available bandwidth the following diagrams illustrated the gain percentage measured in the bandwidth test. 140 120 IPv4 G IPv6 G Gain (%) of test setup C over B 100 80 60 40 20 0 0 20 40 60 80 100 120 140 160 180 200 220 240 260 Node count Figure 6.17: Gain (%) of using test setup C over B in idle state Impact of IPv6 on WiFi-based networks Page 45
Page 1: UNIVERSITY OF TWENTE Faculty of Ele
Page 4 and 5: 6.3.5 RA parameter tuning . . . . .
Page 6 and 7: Motivation Since my second year at
Page 8 and 9: 2.2 IPv6 2.2.1 History IPv4 was dev
Page 10 and 11: Figure 2.2: Header comparison of IP
Page 12 and 13: Figure 2.4: IPv6 usage statistics f
Page 14 and 15: Nodes The reason for networking is
Page 16 and 17: IPv6 uses multicast communication f
Page 18 and 19: 2.4 UT Campusnet The University of
Page 20 and 21: IP packet header between the two ve
Page 22 and 23: Impact of IPv6 on WiFi-based networ
Page 24 and 25: corresponding data link layer addre
Page 26 and 27: Figure 4.4: Router Solicitation & A
Page 28 and 29: • FF02 link local scope • FF05
Page 30 and 31: 5.2 IPv6: NDP As mentioned before A
Page 32 and 33: • If applicable test will be perf
Page 34 and 35: To construct the network setups ill
Page 36 and 37: Decryption A wireless network contr
Page 38 and 39: 8. Wait pre-determined period or un
Page 40 and 41: 600 500 ARP B NDP B ARP C NDP C Pac
Page 42 and 43: Conclusion In general the amount of
Page 44 and 45: 200 IPv4 B IPv6 B IPv4 C IPv6 C Com
Page 46 and 47: Conclusion In general the differenc
Page 50 and 51: 250 IPv4 G IPv6 G Gain (%) of test
Page 52 and 53: Broadcast lowers data rate For all
Page 54 and 55: 7.2.2 Infrastructure based solicite
Page 58 and 59: Implementing this on the access poi
Page 60 and 61: the node. Care-of Address The addre
Page 62 and 63: Figure 9.3: Route Optimization[17]
Page 64 and 65: # give me l o t s of debug i n f o
Page 66 and 67: 9.5 Results In order to test my set
Page 68 and 69: Table 9.2 The results summarized Si
Page 70 and 71: Figure 10.1: Abuse autoconfiguratio
Page 72 and 73: dnsdict6 parallized dns ipv6 dictio
Page 74 and 75: 10.2.2 SeND Secure Neighbor Discove
Page 76 and 77: Closing Without a doubt the world w
Page 78 and 79: Appendix Impact of IPv6 on WiFi-bas
Page 82 and 83: Appendix A Impact of IPv6 on WiFi-b
Page 84 and 85: Appendix B Impact of IPv6 on WiFi-b
Page 86: Appendix B edition, September 2013.

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