On 07 Apr 2005 09:30:29 -0400, Lowell Gilbert wrote: >"Martin Petraschek" <[EMAIL PROTECTED]> writes: > >> By default, FreeBSD does not reply to ICMP multicast echo >>requests. For IPv4 this behaviour can be changed with >> >> sysctl net.inet.icmp.bmcastecho=0|1 >> >> Is there a similar control for IPv6? > >No. That would violate RFC 2463, section 2.4(e.2). >As well as being a bad idea.
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. The same RFC 2463, section 4.2 states: An Echo Reply SHOULD be sent in response to an Echo Request message sent to an IPv6 multicast address. The source address of the reply MUST be a unicast address belonging to the interface on which the multicast Echo Request message was received. Therefore, the OS _should_ respond to a multicast echo request! Martin _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
