Re: icmpv6: issue with routing table entries from link local addresses

2016-09-13 Thread Andreas Hübner
I think I found the relevant fixes: First and foremost it's 741a11d9e410. (net: ipv6: Add RT6_LOOKUP_F_IFACE flag if oif is set) This seems to have already solved my problem, however there were two followup fixes that I should probably also apply: d46a9d678e4c net: ipv6: Dont add RT6_LOOKUP_F_IF

Re: icmpv6: issue with routing table entries from link local addresses

2016-09-13 Thread Andreas Hübner
On Mon, Sep 12, 2016 at 01:17:24PM -0600, David Ahern wrote: > v4.4 and on there are fib6 tracepoints that show the lookup result. > May provide some insights. > > perf record -a -e fib6:* > perf script Thanks for the hint, didn't now that something like this exists. Following up on my earlier ma

Re: icmpv6: issue with routing table entries from link local addresses

2016-09-12 Thread Andreas Hübner
On Mon, Sep 12, 2016 at 07:26:23PM +0200, Hannes Frederic Sowa wrote: > > Actually, I'm convinced I must be doing something wrong here. The setup > > for the issue is quite trivial, someone would have tripped over it > > already. The only condition is that one host has multiple interfaces > > with

Re: icmpv6: issue with routing table entries from link local addresses

2016-09-12 Thread Sowmini Varadhan
On (09/13/16 04:42), Hannes Frederic Sowa wrote: > > But a couple of unexpected things I noticed in linux: the link-local > > prefix should have a prefixlen of /10 according to > > http://www.iana.org/assignments/ipv6-address-space/ipv6-address-space.xhtml > > but "ip -6 route show" lists this as

Re: icmpv6: issue with routing table entries from link local addresses

2016-09-12 Thread YOSHIFUJI Hideaki
Sowmini Varadhan wrote: > On Mon, Sep 12, 2016 at 1:26 PM, Hannes Frederic Sowa > wrote: >> Hello, >> >> On 12.09.2016 16:27, Andreas Hübner wrote: > >>> >>> I have the following setup: >>> - 2 directly connected hosts (A+B), both have only link local addresses >>> configured (interface on

Re: icmpv6: issue with routing table entries from link local addresses

2016-09-12 Thread Hannes Frederic Sowa
On 13.09.2016 04:03, Sowmini Varadhan wrote: > On Mon, Sep 12, 2016 at 1:26 PM, Hannes Frederic Sowa > wrote: >> Hello, >> >> On 12.09.2016 16:27, Andreas Hübner wrote: > >>> >>> I have the following setup: >>> - 2 directly connected hosts (A+B), both have only link local addresses >>> conf

Re: icmpv6: issue with routing table entries from link local addresses

2016-09-12 Thread Sowmini Varadhan
On Mon, Sep 12, 2016 at 1:26 PM, Hannes Frederic Sowa wrote: > Hello, > > On 12.09.2016 16:27, Andreas Hübner wrote: >> >> I have the following setup: >> - 2 directly connected hosts (A+B), both have only link local addresses >> configured (interface on both hosts is eth0) : >>

Re: icmpv6: issue with routing table entries from link local addresses

2016-09-12 Thread David Ahern
On 9/12/16 11:26 AM, Hannes Frederic Sowa wrote: > Hello, > > On 12.09.2016 16:27, Andreas Hübner wrote: >> Hi, >> >> I'm currently debugging a potential issue with the icmpv6 stack and >> hopefully this is the correct place to ask. (Was actually looking for a >> more specific list, but didn't fin

Re: icmpv6: issue with routing table entries from link local addresses

2016-09-12 Thread Hannes Frederic Sowa
Hello, On 12.09.2016 16:27, Andreas Hübner wrote: > Hi, > > I'm currently debugging a potential issue with the icmpv6 stack and > hopefully this is the correct place to ask. (Was actually looking for a > more specific list, but didn't find anything. Please point me to a more > apropriate list if

icmpv6: issue with routing table entries from link local addresses

2016-09-12 Thread Andreas Hübner
Hi, I'm currently debugging a potential issue with the icmpv6 stack and hopefully this is the correct place to ask. (Was actually looking for a more specific list, but didn't find anything. Please point me to a more apropriate list if this is out of place here.) I have the following setup: - 2