Hi, Wang Jiabo.
The configuration depends on OS, doesn't it?
I know only FreeBSD 6.1-RELEASE
and it works fine by default.
For other OS,
I'm not sure because I'm not a specialist about OS.
Thanks,
On Mon, 18 Aug 2008 14:55:13 +0800
wang_jiabo <jiabwang@redhat.com> wrote:
> Hi, Yukiyo Akisada:
> Thanks,
> could you tell me I should care what , when I configure the NUT.
> do you think this is kernel bug or NUT configuration problem
> Thanks
> Best regards
>
>
>
>
> Yukiyo Akisada ??:
> > Hi, Wang Jiabo.
> >
> > TN has the correct behavior.
> >
> > TN exactly sends Echo Request to ::1 according to your tcpdump,
> > and NUT sends Echo Reply from ::1.
> > In this case,
> > NUT must ignore this Echo Request and must not transmit Echo Reply.
> >
> > So, NUT is wrong.
> >
> > Thanks,
> >
> >
> > On Mon, 18 Aug 2008 13:25:55 +0800
> > wang_jiabo <jiabwang@redhat.com> wrote:
> >
> >
> >> Hi, Yukiyo Akisada:
> >> I think my confiugre file on tn has some problem, because
> >>
> >> 3:45:58.605302 IP6 fe80::200:ff:fe00:100 > localhost6.localdomain6:
> >> ICMP6, echo request, seq 0, length 14
> >> 03:45:58.605349 IP6 localhost6.localdomain6 > fe80::200:ff:fe00:100:
> >> ICMP6, echo reply, seq 0, length 14
> >>
> >> is my tn computer(freebsd 7.0).
> >> so could you tell me I should care what, when I configure tn
> >> Thanks
> >> Best regards
> >> wang jiabo
> >>
> >> Yukiyo Akisada ??:
> >>
> >>> Hi, Wang Jiabo.
> >>>
> >>> Please refer RFC 4291 (IP Version 6 Addressing Architecture).
> >>>
> >>> That says,
> >>>
> >>> 472 2.5.3. The Loopback Address
> >>> 473
> >>> 474 The unicast address 0:0:0:0:0:0:0:1 is called the loopback address.
> >>> 475 It may be used by a node to send an IPv6 packet to itself. It must
> >>> 476 not be assigned to any physical interface. It is treated as having
> >>> 477 Link-Local scope, and may be thought of as the Link-Local unicast
> >>> 478 address of a virtual interface (typically called the "loopback
> >>> 479 interface") to an imaginary link that goes nowhere.
> >>> 480
> >>> 481 The loopback address must not be used as the source address in IPv6
> >>> 482 packets that are sent outside of a single node. An IPv6 packet with
> >>> 483 a destination address of loopback must never be sent outside of a
> >>> 484 single node and must never be forwarded by an IPv6 router. A packet
> >>> 485 received on an interface with a destination address of loopback must
> >>> 486 be dropped.
> >>>
> >>> So you must ignore the packet regarding to line 484-486.
> >>>
> >>> Thanks,
> >>>
> >>>
> >>> On Tue, 12 Aug 2008 14:53:46 +0800
> >>> wang_jiabo <jiabwang@redhat.com> wrote:
> >>>
> >>>
> >>>
> >>>> I donot think my test is wrong
> >>>>
> >>>> when I test in icmpv6(RFC4443), I get failure in " Request send to
> >>>> loopback address" section.
> >>>>
> >>>> but I check the tcpdump message, I don't think my test is wrong. so who
> >>>> can help me to get correct answer for the question:my link-local sent echo request to localhost,
> >>>> and get echo reply. but TAHI need that echo request donot need get echo reply. please tell me why?
> >>>>
> >>>> my tcpdump message:
> >>>>
> >>>> tcpdump -r 7.html.Link0.dump
> >>>> reading from file 7.html.Link0.dump, link-type EN10MB (Ethernet)
> >>>> 03:45:58.561963 IP6 fe80::200:ff:fe00:100 > fe80::21d:fff:fe0f:be4e:
> >>>> ICMP6, echo request, seq 0, length 14
> >>>> 03:45:58.562793 IP6 fe80::21d:fff:fe0f:be4e > ff02::1:ff00:100: ICMP6,
> >>>> neighbor solicitation, who has fe80::200:ff:fe00:100, length 32
> >>>> 03:45:58.583718 IP6 fe80::200:ff:fe00:100 > fe80::21d:fff:fe0f:be4e:
> >>>> ICMP6, neighbor advertisement, tgt is fe80::200:ff:fe00:100, length 32
> >>>> 03:45:58.583767 IP6 fe80::21d:fff:fe0f:be4e > fe80::200:ff:fe00:100:
> >>>> ICMP6, echo reply, seq 0, length 14
> >>>> 03:45:58.605302 IP6 fe80::200:ff:fe00:100 > localhost6.localdomain6:
> >>>> ICMP6, echo request, seq 0, length 14
> >>>> 03:45:58.605349 IP6 localhost6.localdomain6 > fe80::200:ff:fe00:100:
> >>>> ICMP6, echo reply, seq 0, length 14
> >>>> 03:45:58.626733 IP6 fe80::200:ff:fe00:100 > ff02::1: ICMP6, neighbor
> >>>> advertisement, tgt is fe80::200:ff:fe00:100, length 32
> >>>> 03:45:58.637448 IP6 fe80::200:ff:fe00:100 > fe80::21d:fff:fe0f:be4e:
> >>>> ICMP6, echo request, seq 0, length 14
> >>>> 03:45:58.637495 IP6 fe80::21d:fff:fe0f:be4e > fe80::200:ff:fe00:100:
> >>>> ICMP6, echo reply, seq 0, length 14
> >>>> 03:46:03.637488 IP6 fe80::21d:fff:fe0f:be4e > fe80::200:ff:fe00:100:
> >>>> ICMP6, neighbor solicitation, who has fe80::200:ff:fe00:100, length 32
> >>>> 03:46:04.637798 IP6 fe80::21d:fff:fe0f:be4e > fe80::200:ff:fe00:100:
> >>>> ICMP6, neighbor solicitation, who has fe80::200:ff:fe00:100, length 32
> >>>> 03:46:05.637988 IP6 fe80::21d:fff:fe0f:be4e > fe80::200:ff:fe00:100:
> >>>> ICMP6, neighbor solicitation, who has fe80::200:ff:fe00:100, length 32
> >>>>
> >>>>
> >>>> [TAHI] tcpdump message:
> >>>>
> >>>> tcpdump -r 71.html.Link0.dump
> >>>> reading from file 71.html.Link0.dump, link-type EN10MB (Ethernet)
> >>>> 04:30:19.486863 IP6 fe80::200:ff:fe00:100 > fe80::200:2ff:fe00:27cd:
> >>>> ICMP6, echo request, seq 0, length 14
> >>>> 04:30:19.487287 IP6 fe80::200:2ff:fe00:27cd > ff02::1:ff00:100: ICMP6,
> >>>> neighbor solicitation, who has fe80::200:ff:fe00:100, length 32
> >>>> 04:30:19.694252 IP6 fe80::200:ff:fe00:100 > fe80::200:2ff:fe00:27cd:
> >>>> ICMP6, neighbor advertisement, tgt is fe80::200:ff:fe00:100, length 32
> >>>> 04:30:19.694627 IP6 fe80::200:2ff:fe00:27cd > fe80::200:ff:fe00:100:
> >>>> ICMP6, echo reply, seq 0, length 14
> >>>> 04:30:19.903842 IP6 fe80::200:ff:fe00:100 > localhost6.localdomain6:
> >>>> ICMP6, echo request, seq 0, length 14
> >>>> 04:30:25.115860 IP6 fe80::200:ff:fe00:100 > ff02::1: ICMP6, neighbor
> >>>> advertisement, tgt is fe80::200:ff:fe00:100, length 32
> >>>> 04:30:25.219835 IP6 fe80::200:ff:fe00:100 > fe80::200:2ff:fe00:27cd:
> >>>> ICMP6, echo request, seq 0, length 14
> >>>> 04:30:25.220171 IP6 fe80::200:2ff:fe00:27cd > fe80::200:ff:fe00:100:
> >>>> ICMP6, echo reply, seq 0, length 14
> >>>> 04:30:30.218676 IP6 fe80::200:2ff:fe00:27cd > fe80::200:ff:fe00:100:
> >>>> ICMP6, neighbor solicitation, who has fe80::200:ff:fe00:100, length 32
> >>>> 04:30:31.218447 IP6 fe80::200:2ff:fe00:27cd > fe80::200:ff:fe00:100:
> >>>> ICMP6, neighbor solicitation, who has fe80::200:ff:fe00:100, length 32
> >>>> 04:30:32.218247 IP6 fe80::200:2ff:fe00:27cd > fe80::200:ff:fe00:100:
> >>>> ICMP6, neighbor solicitation, who has fe80::200:ff:fe00:100, length 32
> >>>>
> >>>>
> >>>>
> >>>> thanks
> >>>> best regards
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>
> >>>
> >>
> >
> >
> >
>
>
--
Yukiyo Akisada <akisada@tahi.org>