Payload for IP over Ethernet : IPv6 over IPv4

[Ettikan Kandasamy]

Hello Steve,

     I'm sorry for the improper text display (due to my mail editor).
With 1500 bytes for ether IP traffic,

>So it looks as follows for TCP for IPv4 ,
IPv6 , IPv6 over v4 and IPv4 over v6
>
>                   v4     v6  v6ov4  v4ov6
>
>IP Header          20     40    20    40
>IP Payload       1480   1460  1480  1460
>     Header                     40    20
>     Payload                  1440  1440
>TCP header         20     20    20    20
>TCP payload      1460   1440  1420  1420
>Any options ...   xxx   xxx   xxx    xxx
>(Actual payload)  yyy   yyy   yyy    yyy

-ettikan