Re: Fwd: [Bug 470774] New: [RFC1981-PMTU]Multicast Destination - One Router test failed

quoted

So which TAHI test was this?  Have they tracked down a commit that 
caused this to break?

I use TAHI 4-0-3 RFC1981, if you can access my website , please see 
http://10.66.65.20/self_test/ipv6-core/Self_Test_4-0-3_F10/

That looks like an internal link.  Either way, I'm guessing this was 
test 13 (Checking For Increase in PMTU), which passed for RHEL 5.3 
recently I think.

quoted

quoted

Version-Release number of selected component (if applicable):
2.6.27-0.352.rc7.git1.fc10.i686

Hmmm, I would take a look at this commit:

commit b5c15fc004ac83b7ad280acbe0fd4bbed7e2c8d4
Author: Herbert Xu [off-list ref]
Date:   Thu Feb 14 23:49:37 2008 -0800

    [IPV6]: Fix reversed local_df test in ip6_fragment

    I managed to reverse the local_df test when forward-porting this
    patch so it actually makes things worse by never fragmenting at
    all.

    Thanks to David Stevens for testing and reporting this bug.

    Bill Fink pointed out that the local_df setting is also the wrong
    way around.

So can you verify your kernel has this fix?  Or can you run a later 
kernel and see if it's fixed?

I check using the command, get the following info:
 #cat /proc/net/dev_snmp6/eth0|grep -i frag
   Ipv6FragOKs           0
   Ipv6FragFails           0
   Ip6FragCreates        0

You'll actually want to look at eth1, which is where the pings are going 
out, I was just giving that as an example.

-Brian