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Message-ID: <AANLkTik9=TcMWzNyKWYyDu+bbGscPne6++gD42aju9s_@mail.gmail.com> Date: Fri, 13 Aug 2010 17:25:27 -0500 From: Steve Chen <schen@...sta.com> To: Brian Haley <brian.haley@...com> Cc: usagi-users-ctl@...linux-ipv6.org, netdev@...r.kernel.org Subject: Re: TAHI CN-6-4-1 failed on Linux 2.6.32 kernel On Fri, Aug 13, 2010 at 12:55 PM, Brian Haley <brian.haley@...com> wrote: > On 08/13/2010 01:34 PM, Steve Chen wrote: >>>>>> The TAHI correspondent node tests CN-6-4-1 (Processing in upper layer >>>>>> - Echo Checksum) failed for me in the 2.6.32 kernel. It appears that >>>>>> the Linux kernel is replying the ICMP echo request in >>>>>> icmpv6_echo_reply without much checking. Is this an intentional >>>>>> non-conformance to RFC3775 section 9.3.1? > [snip] > >> It appears that skb->ip_summed is always 1 (CHECKSUM_UNNECESSARY). >> I'm using e1000e. Looking at the driver, there is a checksum offload >> hardware. I think the code is doing frame check on the entire >> Ethernet packet. Since no error was found, it assume everything >> inside is correct. > > # ethtool -K ethX rx off > > Does that help? Does using a different NIC help? > ethtool did not help. I tried to run the test with a different NIC, but I keep getting ... IPSEC_AKEY : -------------------- IPSEC_EALGO : --------- IPSEC_EKEY : ------------------------ IPSEC_SUPPORT : OFF RR_TIMEOUT : 3 TIMEOUT : 2 WAIT_RATELIMIT : 1 send Ra_R0_AllNd Wait 3 sec. Clear Captured Packets (Link0) Clear Captured Packets (Link0) send Ns_R0_AllNd ######### Packe Name(RH) Field Value(NextHeader) is NULL CNT_SendAndRecv Status=UnKnown NG UnKnown -> Initialization Fail ... I'm have not been able to locate problem... Will continue to look Monday. Steve -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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