On 03/19/2016 08:54 PM, Carlos E. R. wrote:
Content-ID: <alpine.LSU.2.20.1603192035250.14097@Grypbagne.inyvabe>
Hi,
I just told my router to send log entries to a computer on my lan, and it is talkative:
<3.4> 2016-03-19T20:24:50+01:00 router radvd 675 - - our AdvOtherConfigFlag on br0 doesn't agree with fe80::8cae:84ff:fe43:27d4
You have more than one device, that sends router advertisements or dhcp answers. See man radvd -> AdvOtherConfigFlag on|off When set, hosts use the administered (stateful) protocol for autoconfiguration of other (non-address) information. The use of this flag is described in RFC 4862. and i think the flag controls how RFC 4862 section 5.6 is managed.
I only found a post in google with a similar message, and I don't see much in it:
<http://w3foverflow.com/question/bridged-vm-guest-does-not-get-ipv6-ra-prefix-from-host/>
As a first step, I try to find what machine is that in my LAN. I can ping it:
Telcontar:~ # ping6 -I eth0 "fe80::8cae:84ff:fe43:27d4" PING fe80::8cae:84ff:fe43:27d4(fe80::8cae:84ff:fe43:27d4) from fe80::221:85ff:fe16:2d0b eth0: 56 data bytes 64 bytes from fe80::8cae:84ff:fe43:27d4: icmp_seq=1 ttl=64 time=1.79 ms 64 bytes from fe80::8cae:84ff:fe43:27d4: icmp_seq=2 ttl=64 time=0.501 ms 64 bytes from fe80::8cae:84ff:fe43:27d4: icmp_seq=3 ttl=64 time=0.471 ms 64 bytes from fe80::8cae:84ff:fe43:27d4: icmp_seq=4 ttl=64 time=0.489 ms ^C
Try: ip neighbour show it should show you the arp cache and the contents of the neighbour table. Matching the MAC adresses may help you find the IPv4, but only if there was IPv4 traffic recently.