Figure 1.
IP datagram format
Figure 2.
Network number field and host number field in IP address
Figure 3.
Illustrates the decimal system
Figure 4.
Solving process of network address
Figure 5.
IPv6 datagram with multiple optional extension headers
Figure 6.
Basic IPv6 header with a length of 40 bytes
Figure 7.
Header format of IPV9
Figure 8.
IPV9 is IPv4 compatible
Figure 9.
(a) one-way access between IPv4 of VPN tunnel and Beijing backbone node; (b) IPv4 reciprocal visits within the VPN tunnel
Figure 10.
(a) IPV9 exchange visits between VPN tunnel and Beijing backbone node; (b) IPV9 mutual visits within the VPN tunnel