SNAPSNAP
IPv4IPv4
Touching the SNAPSNAP layer button displays the parameters available for the
Sub
Network Access Protocol
protocol layer.
The Protocol IDProtocol ID is fixed to 00, and the EthertypeEthertype field depends on the upper
protocol layer.
'SNAP' is not possible without 'LLC1'.
Touching the IPv4IPv4 layer button displays the parameters available for the
Internet Protocol version 4
layer.
IPv4 header is defined in RFC 791 as below.