Hi, Wang.
In addition,
please make sure that REF-Router1 has cleared its neighbor cache before sending Echo Request.
When REF-Router1 sends Echo Request,
the address resolution must be performed.
REF-Router1 sends NS to solicited-node multicast address,
Then, if DAD works correctly, only one device respond to NS with NA.
REF-Router1 may learn TAR-Host2 and TAR-Host1 link-layer address by receiving RS.
So explicit erasing of neighbor cache is important for this test.
Thanks,
On Tue, 06 Jan 2009 16:06:34 +0800
wang_jiabo <jiabwang@redhat.com> wrote:
> Hello, Arul Murugan:
>
> Thank you very much your reply.
> I found you are right. Thanks.
> Best regards
> JiaBo
>
> Arul Murugan wrote:
> >
> > Hi,
> >
> > It looks partially passed.
> >
> > I verified the following way.
> >
> > 1st ping request packet number 114 and its reply packet number is 116
> > from the attached dump, In ECHO Reply src mac address is
> > 00:e0:4c:19:12:9f and the Link local address is
> > fe80::21d:fff:fe0f:be4e. This will give conformation that the reply
> > has come from the right interface(because mac and link local address
> > are completely different).
> >
> >
> >
> > 2nd ping request packet number 211 and reply is packet number 213, In
> > reply src mac address is fe80::2e0:4cff:fe19:129f and link local
> > address is fe80::2e0:4cff:fe19:129f, so it is failed.( it supposed to
> > be src mac fe80::21d:fff:fe0f:be4e and LLA fe80::2e0:4cff:fe19:129f).
> >
> >
> >
> > Regards,
> >
> > -Arul
> >
> >
> >
> >
> > 2009/1/6 wang_jiabo <jiabwang@redhat.com <mailto:jiabwang@redhat.com>>
> >
> > Hello, every one:
> > how can I know I pass the case from tcpdump info.
> > Thanks
> > Best regards
> >
> > jiabo
> >
> > Vendor=Cisco
> > Link-Local=FE80::217:e0ff:fec9:35d9
> > Global=3ffe:501:ffff:103::1
> > MAC=00:17:e0:c9:35:d9
> > _____________
> > |Cisco Router| REF-Router1
> > |____________|
> > |
> > |
> > | Network1
> > |________________________________________
> > | |
> > ______|______ ______|______
> > TAR-Host1 |RHEL | |FreeBSD |
> > TAR-Host2
> > |___________| |___________|
> > Vendor=RedHat Vendor=FreeBSD
> > Link-Local=fe80::21d:fff:fe0f:be4e
> > Link-Local=fe80::2e0:4cff:fe19:129f
> > Global=3ffe:501:ffff:103:21d:fff:fe0f:be4e
> > Global=3ffe:501:ffff:103:2e0:4cff:fe19:129f
> > MAC=00:1d:0f:0f:be:4e
> > MAC=00:e0:4c:19:12:9f
> >
> >
> > PF1=3ffe:501:ffff:103::/64
> >
> >
>
>
>
--
Yukiyo Akisada <akisada@tahi.org>