Hello Hemant,
This comment for the test specification of IPv6 Ready Logo Program,
right?
Kinda these comments, please sent to IPv6 Ready Logo Committee.
It should be sended to ipv6ready-info@ipv6ready.org
Thank you for your understanding.
Best regards,
On Tue, 15 May 2007 12:07:29 -0400
"Hemant Singh \(shemant\)" <shemant@cisco.com> wrote:
> Hi folks,
>
> I looked at all test cases to test RFC 2461 at this TAHI URL below.
>
> http://www.tahi.org/logo/phase2-core/result/Self_Test_1-4-3/freebsd61.ho
> st/nd.p2/index.html
>
> I didn't see a test in the test suite to test a certain paragraph in
> section 3.1 of RFC 2461.
> The certain paragraph is as follows:
>
> Multiple prefixes can be associated with the same link. By
> default, hosts learn all on-link prefixes from Router
> Advertisements. However, routers may be configured to omit some
> or all prefixes from Router Advertisements. In such cases hosts
> assume that destinations are off-link and send traffic to routers.
> A router can then issue redirects as appropriate.
>
> Note the last sentence of the para above that says if an IPv6 host has
> received an RA from the IPv6 router
> where RA does not advertise any prefix, then the host has to send all
> its traffic to the IPv6 router.
> Without a prefix advertised, a host has no information on prefix length
> nor any way to find out if any
> destination is off-link or on-link when the host has to send a packet
> out. That is why RFC 2461 says host
> has to send all its traffic to the router for the case when router
> hasn't advertised any prefix.
>
> Therefore when an IPv6 host has to send out a packet and if the host
> issues an NS to try and resolve
> the packet destination, then the host is not compliant to this para in
> of RFC 2461. The host should
> just send the packet out since this host has received an RA with no
> prefix advertised.
>
> I recommend this test to be a part of IPv6 Ready Logo for any IPv6 host
> stack.
>
> Thanks.
>
> Hemant
>
> Hemant Singh
> Technical Leader
> CMTS Business Unit
> Cisco
> Boxboro, MA, USA
> tel: 978-936-1622
--
Hideshi Enokihara <Hideshi.Enokihara@jp.yokogawa.com>