Issue description from Pete Barany's email:
> What I mean to say is that the parameter AdvDefaultLifetime MUST be
> either zero or between MaxRtrAdvInterval and 9000 seconds (IPv6) per
> RFC 2461. Same thing for IPv4 per RFC 1256 (only the parameter is
> Advertisement Lifetime). The inconsistency (for lack of a better word)
> is that the Router Lifetime field is 16 bits and if set to anything
> greater than 9000 seconds then this would violate the specifications.
> So, if it is set to 18.2 hours (e.g., for some wireless cellular
> links) it violates the specs.
Suggested resolution from Erik Nordmark:
So if we change the sentence in 4.2 from:
The maximum value corresponds to 18.2 hours.
to
The field can contain values up to 65535 and receivers should
handle any value, while the sending rules in section 6 limit
the lifetime to 9000 seconds.
would that be better?
Cuurent text in the doc:
Router Lifetime
16-bit unsigned integer. The lifetime associated
with the default router in units of seconds.
The field can contain values up to 65535 and
receivers should handle any value, while the
sending rules in section 6 limit the lifetime to
9000 seconds. A Lifetime of 0 indicates that the
router is not a default router and SHOULD NOT
appear on the default router list. The Router
Lifetime applies only to the router's usefulness as
a default router; it does not apply to information
contained in other message fields or options.
Options that need time limits for their information
include their own lifetime fields.
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