Date: Mon, 20 Dec 2010 08:07:55 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-net@freebsd.org Subject: Re: IFT_L2VLAN and IPv6 link-local addresses Message-ID: <201012200807.57670.jhb@freebsd.org> In-Reply-To: <20101220061057.GA36160@zibbi.meraka.csir.co.za> References: <20101220061057.GA36160@zibbi.meraka.csir.co.za>
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On Monday, December 20, 2010 1:10:57 am John Hay wrote: > Hi, > > I see that on FreeBSD-8 if you use IPv6 inside vlans, the local part of > the address (bottom 64 bits) is based on the MAC address of the first > ethernet interface on the system. It was not like this in my old -7, > machine, so I looked around a bit. It looks like it is because vlans were > changed to report their type as IFT_L2VLAN. So I made this patch to the > IPv6 code that fix it for me: > > Index: sys/netinet6/in6_ifattach.c > =================================================================== > RCS file: /home/ncvs/src/sys/netinet6/in6_ifattach.c,v > retrieving revision 1.74.2.3 > diff -u -U 5 -r1.74.2.3 in6_ifattach.c > --- sys/netinet6/in6_ifattach.c 6 May 2010 06:44:19 -0000 1.74.2.3 > +++ sys/netinet6/in6_ifattach.c 15 Dec 2010 18:33:45 -0000 > @@ -265,10 +265,11 @@ > addrlen = sdl->sdl_alen; > > /* get EUI64 */ > switch (ifp->if_type) { > case IFT_ETHER: > + case IFT_L2VLAN: > case IFT_FDDI: > case IFT_ISO88025: > case IFT_ATM: > case IFT_IEEE1394: > #ifdef IFT_IEEE80211 > > Anything against me committing it? Am I missing something? Should it be > sorted differently? Should it also be merged? This looks correct. Please fix and MFC. I haven't merged the kernel changes to change the type of IFT_ for vlan's yet as I was worried about applications such as this needing to be updated (such as dhcpd for example). I had thought that I had not merged the kernel change to 8 though, that it was just in 9? -- John Baldwin
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