2. Two Mobile Revolutions…
• 1990s: mobile voice explosion
– Few wires available (copper)
– New wireless technology (analogue mobile)
– New consumer technology (cellphones)
– Pent up demand (global telephony)
2
3. Two Mobile Revolutions…
• 2010s: mobile broadband explosion
– Few wires available (copper/fibre)
– New wireless technology (3G/4G)
– New consumer technology (smart phones)
– Pent up demand (global Internet)
3
4. “Real” Mobile Broadband…
• 2000s: GPRS/3G
– Limited devices: WAP, basic services
– 100-1000kbps or so
– IP over digital voice network (IPv4)
– Single user
• 2010s: 4G/LTE
– General purpose devices: full Internet access
– 10-100Mbps
– IP-based infrastructure (IPv4 and IPv6)
– Multiple user (hotspots, Mifi, etc)
– The new last mile
• Watch out for: Carrier wifi, “Wifi First”
4
5. Not “If” but “How” we will connect…
• The last mile…
– Not wired
– but wireless
• Wireless…
– Not 3G
– but 4G and carrier wifi (same device!)
– And everything over IP (LTE/802.11x)
• But: Which IP?
– IPv4 or IPv6?
6. 100 million IPv4 addresses left…
http://www.potaroo.net/tools/ipv4/
7. Private addresses and NAT
Internet
202.12.29.32
NAT
10.0.0.202
Extn 202
Phone
Network
02 6262 9898
PABX
8. Private addresses and NAT
Internet
202.12.29.32
NAT
10.0.0.202
?
Extn 202
Phone
Network
02 6262 9898
PABX