socket error on ipv6 link local

Paul A razor at meganet.net
Tue Apr 1 21:24:23 UTC 2014


Thank you Mark for all your help in the mail list. I will try this instead,
so is this happening when an link local client is trying to query my server?

paul



-----Original Message-----
From: Mark Andrews [mailto:marka at isc.org] 
Sent: Tuesday, April 01, 2014 5:03 PM
To: Paul A
Cc: ca35763+bind at realsimplemail.com; bind-users at isc.org
Subject: Re: socket error on ipv6 link local


	Just mark fe80::/10 as bogus.  AAAA records do not have
	enough information in them to disambiguate link-local
	addresses and map them to per machine scope id's.

		server fe80::/10 { bogus yes; };

	Mark

In message <009501cf4dec$1b097920$511c6b60$@meganet.net>, "Paul A" writes:
> Im going to change bind to just listen on specified ipv6 addresses to 
> see what happens.
> 
> 
> 
> -----Original Message-----
> From: bind-users-bounces+razor=meganet.net at lists.isc.org
> [mailto:bind-users-bounces+razor=meganet.net at lists.isc.org] On Behalf 
> Of
> ca35763+bind at realsimplemail.com
> Sent: Tuesday, April 01, 2014 4:35 PM
> To: bind-users at lists.isc.org
> Subject: RE: socket error on ipv6 link local
> 
> I'm getting the same errors with bind-9.10.0b2.
> 
> Just a guess but I think it's related to using a HE IPv6 Tunnel and 
> the updated root servers.
> 
> On Tue, 1 Apr 2014, Paul A wrote:
> 
> > Date: Tue, 1 Apr 2014 16:25:43 -0400
> > From: Paul A <razor at meganet.net>
> > To: 'Kevin Darcy' <kcd at chrysler.com>, bind-users at lists.isc.org
> > Subject: RE: socket error on ipv6 link local
> > 
> > So Kevin what your saying is someone using my dns created a record 
> > with fe80::? I was under the impression that bind what trying to 
> > listen on that subnet.
> >
> >
> >
> > Thanks Paul
> >
> >
> >
> > From: bind-users-bounces+razor=meganet.net at lists.isc.org
> > [mailto:bind-users-bounces+razor=meganet.net at lists.isc.org] On 
> > Behalf Of Kevin Darcy
> > Sent: Tuesday, April 01, 2014 4:02 PM
> > To: bind-users at lists.isc.org
> > Subject: Re: socket error on ipv6 link local
> >
> >
> >
> > My guess would be that some miscreant out there created a glue AAAA 
> > record with an RDATA of "fe80::" and your network stack balks at 
> > connecting to such an abomination.
> >
> >
> > - Kevin
> >
> > On 4/1/2014 2:31 PM, Paul A wrote:
> >
> > Hi, I have been using bind 9.9.4 for awhile suddenly looking at the 
> > looks I see lots of socket.c errors. Looking at this it seems that 
> > bind is complaining about the link local ipv6 address , I enabled 
> > ipv6 awhile back and I just noticed this.
> >
> >
> >
> > Apr  1 13:05:32 ns1 named[18769]: connect(fe80::#53) 22/Invalid 
> > argument
> >
> > Apr  1 13:05:32 ns1 named[18769]: socket.c:5351: unexpected error:
> >
> > Apr  1 13:05:32 ns1 named[18769]: connect(fe80::#53) 22/Invalid 
> > argument
> >
> > Apr  1 13:05:32 ns1 named[18769]: socket.c:5351: unexpected error:
> >
> > Apr  1 13:05:32 ns1 named[18769]: connect(fe80::#53) 22/Invalid 
> > argument
> >
> > Apr  1 13:05:32 ns1 named[18769]: socket.c:5351: unexpected error:
> >
> > Apr  1 13:05:32 ns1 named[18769]: connect(fe80::#53) 22/Invalid 
> > argument
> >
> >
> >
> >
> >
> >
> >
> > Aside from having my global ipv6 addresses here is the link local on 
> > that box.
> >
> >
> >
> >          inet6 addr: fe80::206:5bff:fe8e:XXXX/64 Scope:Link
> >
> >
> >
> >
> >
> > Has anyone ran into this issue, I do have listen-on-v6 { any; }; and 
> > im assuming if I was to just add the global ipv6 ips this would go 
> > away but I guess im wondering does bind not listen bind itself to 
> > link local ip as well ? what is the recommended way to go about fixing
this.
> >
> >
> >
> >
> >
> > BIND 9.9.4 (Extended Support Version) <id:8f9657aa> built with 
> > '--enable-rrl'
> >
> >
> >
> >
> >
> > Thanks, Paul
> >
> >
> >
> >
> >
> >
> > _______________________________________________
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> > unsubscribe from this list
> >
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> >
> >
> >
> >
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--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org



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