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Date: Mon, 03 May 2010 23:22:49 -0700 (PDT) From: David Miller <davem@...emloft.net> To: enh@...gle.com Cc: brian.haley@...com, netdev@...r.kernel.org Subject: Re: linux kernel's IPV6_MULTICAST_HOPS default is 64; should be 1? From: enh <enh@...gle.com> Date: Mon, 3 May 2010 23:19:22 -0700 > for the *unicast* hops, a part of the RFC i didn't quote says: > > If the [IPV6_UNICAST_HOPS] option is not set, the > system selects a default value. > > but for the *multicast* hops, which is what i'm talking about, this > part of the quoted text seems pretty definitive: > > If IPV6_MULTICAST_HOPS is not set, the default is 1 > (same as IPv4 today) > > this is what my test shows isn't true of linux; linux reuses its > unicast default instead. Ok, I see, so yeah this needs to be fixed to use "1" instead of "-1" in the np->xxx ipv6 socket initialization. -- 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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