Problems under test of IPv6 Ready Logo Program Phase-2

Max Laier max at love2party.net
Thu Oct 19 00:53:37 UTC 2006


On Thursday 19 October 2006 00:52, gnn at freebsd.org wrote:
> At Wed, 18 Oct 2006 19:08:57 -0800,
>
> chenxiaochen wrote:
> > Dear all, This is my second letter here, I am beginning to love here
> > for there are many kindly friends, such as SUZUKI
> > Shinsuke<suz at freebsd.org> :) Ok,questions follows...  Does someone
> > do research on IPv6 Ready Logo Program? Now I am doing IPv6
> > conformance test under TAHI platform and I meet some problems.
>
> Though some of us are using TAHI I do not believe the project itself
> is going for the Logo Program.
>
> I am working on IPv6 and IPSec and using TAHI regularly.
>
> > My test setup is below:
> >   -+-----------------------+- Link1
> >
> >    |rl0               |  rl1
> >
> >   TN                 NUT
> >
> >    |bge0              |  rl0
> >
> >   -+-----------------------+- Link0
> >  TN:IBM desktop PC,OS is FreeBSD6.1;
> >  NUT:IBM desktop PC,OS is FreeBSD6.1
> > ---   rl0,rl1,bge0 stand for the NICs of TN and NUT.
> > My test software is v6eval-3.0.10 and package are Self_Test_1-4-2 and
> > v6eval-remotes-3.0.
> >
> > 1. Section 5: RFC 2463 - ICMPv6
> >    "case 11 Part B: Multicast Destination"  ---  fail
> >    After TN send Echo Request to global multicast address(ff1e::1:2),
> > the following words appear on NUT's screen-----rl1:discard oversize
> > frame (ether type 86dd flags 3 len 1514 > max 1294 ) However, "case
> > 10 Part A: Unicast Destination" passes.
> >
> > 2. Section 2: RFC 2461 - Neighbor Discovery for IPv6
> >    "127 Part C: Sending Unsolicited RA (Min Values)"  --- fail
> >    After NUT excutes rtadvd, TN says "Could't observe RA".
> >    The corresponding rtadvd.conf is
>
> I don't believe that you need to run your own RA.  TAHI is usually
> self contained.

/me too.

> >    But when I use Ethereal to capture the IP package, I get RA about
> > 6 seconds later after rtadvd is excuted. The captured RA's parameters
> > are:
> >    cur hop limit--64
> >    router lifetime--1800
> >    reachable tiem--0
> >    retrans time--0
> >    valid lifetime--0x00278d00
> >    preferred lifetime--0x00093a80
>
> You shoudl check if this "just works" without the RA.
>
> > 3. Section 3: RFC 2462 - IPv6 Stateless Address Autoconfiguration
> >    All cases fail
> >    Reason----TN can't observe DAD process.
> >    I can't capture DAD packages by Ethereal in the network start
> > process.
> >
> >    But I can get DAD packages on IBM T43(NIC is bge0, OS is FreeBSD
> >    6.1) and T30(NIC is fxp0, OS is FreeBSD 5.4) when the network
> >    start( host test).  Someone ever told me that --- "there is a bug
> >    in FreeBSD's kernel which prevents DAD being sent. You have to
> >    force ethernet card into any mode rather than auto-select before
> >    it is activated, by modifying rc.network" As if rc.network has
> >    been change to netstart in FreeBSD 6.1. But I don't know how to
> >    modify it.
>
> I have not heard of this and don't have that hardware so can't check
> it.

What's your setting for the net.inet6.ip6.dad_count sysctl?  I know for a 
fact that FreeBSD does send out DAD as it has been killing me in MIP6 
simulations.

I just tested with a recent 6.2-pre and it does too send out DAD packets 
and prevents me from configureing a duplicate on an interface 
yelling: "bge0: DAD detected duplicate IPv6 address ..."  This is a X41 
bge0 vs. an fxp0 onboard a tyan mobo, btw.

Does manual address configuration yield DAD packets?

> >  By the way, these is a bug I found about IPv6 Ready Logo Program
> >  Phase-2 auotmatic test. Hope this informaiton below will be useful
> >  to you.
> >
> > 1.install v6eval-remotes-3.0
> > 2.# cd /usr/local/v6eval/bin/freebsd-i386/
> > 3.# ee racontrol.rmt
> > ---------------------------------------------------------------------
> >----------------- line 288
> > "\t:rtime#$rOpt_retrans:"  should be changed into 
> > "\t:retrans#$rOpt_retrans:"
> > ---------------------------------------------------------------------
> >-----------------
>
> Best,
> George

-- 
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