Date: Mon, 30 Jun 2008 09:37:07 -0400 From: Steve Bertrand <steve@ibctech.ca> To: "Tuc at T-B-O-H.NET" <ml@t-b-o-h.net> Cc: freebsd-net@freebsd.org Subject: Re: IPV6 problem : nd6_lookup: failed to add route for a neighbor Message-ID: <4868E183.2070504@ibctech.ca> In-Reply-To: <200806270430.m5R4U5Ib025336@himinbjorg.tucs-beachin-obx-house.com> References: <200806270430.m5R4U5Ib025336@himinbjorg.tucs-beachin-obx-house.com>
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Tuc at T-B-O-H.NET wrote: > But once I brought it all up, I got : > > kernel: nd6_lookup: failed to add route for a neighbor(2001:0470:0007:0028::0001), errno=17 With your exact configuration between two 7.0 boxes, I see no indication of this error whatsoever, with the /128 prefix. > The tunnel came up, was passing traffic, but those messages were > getting out of hand. I tried a prefixlen of 64, and I got: > > ifconfig: ioctl (SIOCAIFADDR): Invalid argument When I attempted to recreate the tunnel with any prefix length other than 128, the same ifconfig error appeared as above. It appears as though when creating a gif tunnel, the only IPv6 prefix length that is valid as far as ifconfig is concerned is /128 even though the link's prefix is /64 even in 7. Steve
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