[ntp:questions] Re: Multicast TTL and FreeBSD trouble
David L. Mills
mills at udel.edu
Thu Aug 18 04:58:03 UTC 2005
No. See the RFC for IPv4 on administrative distance. I make no
judgemenst here, just tell me what to do.
Danny Mayer wrote:
> David L. Mills wrote:
>> There is a mapping table which converts integers to actual TTL
>> values. See at or near line 2954 of ntp_proto.c. This is intended to
>> follow guidelines for administrative scoping. I don't remember which
>> RFC and the implementation has never been tested for conformance to
>> my knowledge. What to do in IPv6 is even of more murk. I am happy to
>> listen to suggestions.
> In IPv6 it's known as a hop count which is what happens in effect
> anyway even with IPv4. Each hop decrements the number until it reaches
> 0 and then it stops forwarding. Currently the ttl/hop count shouldn't
> be more than about 2.
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