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Date: Fri, 28 Sep 2007 17:50:38 -0700 From: David Stevens <dlstevens@...ibm.com> To: Brian Haley <brian.haley@...com> Cc: David Miller <davem@...emloft.net>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>, netdev-owner@...r.kernel.org, YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org> Subject: Re: [IPV6] Fix ICMPv6 redirect handling with target multicast address Brian, A multicast address should never be the target of a neighbor discovery request; the sender should use the mapping function for all multicasts. So, I'm not sure that your example can ever happen, and it certainly is ok to send ICMPv6 errors to multicast addresses in general. But I don't see that it hurts anything. either (since it should never happen :-)), so I don't particularly object, either. I think it'd also be better if you add the check to be: if (ipv6_addr_type(target) & (IPV6_ADDR_LINKLOCAL|IPV6_ADDR_UNICAST)) or something along those lines, rather than reproducing ipv6_addr_type() code separately in a new ipv6_addr_linklocal() function. +-DLS - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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