by Matthew G. Naugle
Wiley Computer Publishing, John Wiley & Sons, Inc.
ISBN: 0471196568 Pub Date: 11/01/98
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Illustrated TCP/IP
by Matthew G. Naugle Wiley Computer Publishing, John Wiley & Sons, Inc. ISBN: 0471196568 Pub Date: 11/01/98 |
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The following slide shows the IPv6 and IPv4 dual-stack capability of a host. Based on the EtherType field of the received packet, the NIC software can hand off the decapsulated packet to either of the TCP/IP software stacks.
Since the Ethernet type field has a new number for IPv6, this method is very easy to implement. When a packet is received, the type field is checked. If the type field contains 0800 (in hex) the packet is handed off to the IPv4 protocol stack, otherwise the type field contains 86DD, then the packet is handed off to the IPv6 stack.
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IPv6 and IPv4 Dual-Stack Strategy
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