wiki:IntAreaIssues

Version 3 (modified by evyncke@…, 3 years ago) (diff)

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Typical INTernet Area Issues

Certain internet area related issues show up time and time again when the Area Directors in the IETF Internet Area (or members of the Internet Directorate or IoT Directorate) complete reviews of Internet-Drafts. I-D authors are advised to address these issues ahead of time to smooth the path to RFC publication.

IPv6 Support

IPv6 should be the basis of all new protocol developments but there are still some issues overlooked by authors.

Multiple IPv6 Addresses per Interface

All interfaces have at least one IPv6 address: the link-local address. But, they can also have many more addresses obtained by stateless address autoconfiguration, DHCP, ... possibly in different prefixes. The list of addresses also changes daily or even more frequently.

Canonical Format of IPv6 Addresses

All IPv6 addresses in an I-D should be written according to RFC 5952.

IPv6 literals with ports

In URI, the format of IP6 literals uses square brackets to differentiate the ':' of the IPv6 address and the ':' used to separate the layer-3 address and the layer-4 port such as in http://[2001:db8::cafe]:8080.

Example Addresses

When I-D includes examples, the addresses should be from RFC 3849 for IPv6 (2001:DB8::/32) and RFC 5737 for IPv4

The blocks 192.0.2.0/24 (TEST-NET-1), 198.51.100.0/24 (TEST-NET-2),
and 203.0.113.0/24 (TEST-NET-3) are provided for use in
documentation.

MTU and Fragmentation

IPv4 and IPv6 have different minimum MTU on the link (576 and 1280 bytes) and protocols should be designed to leverage larger MTU.

Fragmentation is also done differently between IPv4 and IPv6 as fragmentation can also occur on the path for IPv4.

Tunnels

What happens when an encapsulated packet cannot be forwarded ? Should ICMP error message be generated ? To which destination ? Including which part of the inside packet ?