TABLE I
IPV9 HEADER FORMAT
| version | category | Flow label | Payload length | Under one head | Hop limit |
| Source address | |||||
| The destination address | |||||
TABLE II
STRUCTURE DIAGRAM OF DOUBLE PROTOCOL STACK
| The application layer | |
| Transport Layer (TCP/UDP protocol) | |
| IPv4 | IPV9 |
| Network interface layer | |

Figure 1.
IPV9 over IPv4 tunnels

Figure 2.
Nat-PT network structure diagram