December 2019
Beginner
510 pages
12h 7m
English
Content preview from Networking Fundamentals
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Intra-Site Automatic Tunnel Addressing Protocol
The Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) takes advantage of dual stack capabilities to allow for the transmission of IPv6 data across an IPv4 network. In essence, what ISATAP does is take the IPv4 address of the NIC that wishes to transmit the IPv6 data and adds it to one of two IPv6 prefixes:
- Globally unique: FE80::0200:5EFE
- Locally unique: FE80::0000:5EFE
You may see this modified address as a mixture of both hexadecimal and decimal, or you may see it as purely hexadecimal; for example, FE80::0200:5EFE:129.90.32.76 or FE80::0200:5EFE:81:5A:20:4C.
One easy way of identifying whether an IPv6 address is an ISATAP address is by looking for the 5EFE in it. Any ISATAP-enabled ...
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