IPv6 ICMP multicast response
Martin Petraschek
petraschek at ftw.at
Thu Apr 7 09:14:03 PDT 2005
On 07 Apr 2005 10:29:07 -0400, Lowell Gilbert wrote:
>"Martin Petraschek" <petraschek at ftw.at> writes:
>
>> The section you are referencing in RFC 2463 is concerning ICMP
>> ERROR messages. Echo requests/responses are informational
>> messages, therefore this section does not apply.
>
>Ah. You're right; I was thinking about error handling because that's
>the code I happened to be working with this morning. I was looking at
>the error handling code, as well, so when I said it was impossible I
>may have been wrong also. [The ICMP6_ECHO_REQUEST handling in
>icmp6_input() doesn't do any special handling for multicast at all, so
>I don't see why it doesn't Just Work.]
>
>Sorry for not paying enough attention to the question.
No problem.
Anyway, because of your reply I double checked my setup and found out
that FreeBSD does indeed answer to multicast ping requests. There just
does not seem to be a sysctl switch to turn off this behaviour (as there is for
IPv4).
Thank you,
Martin
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