default route via SLAAC not working ?

[Mike Tancsa]

On 7/31/2017 11:54 AM, Trond Endrestøl wrote:
>>
>> Is there a way to manually force a solicitation by the interface ?
> 
> rtsol(8), e.g. rtsol ue0 or rtsol -a.
> 

Thanks!  A little further. It seems at bootup time, I do get a default
route installed. But then it goes away

% netstat -nr6 | head -6
Routing tables

Internet6:
Destination                       Gateway                       Flags
   Use    Mtu    Netif Expire
::/96                             ::1                           UGRS
     0  16384      lo0
default                           fe80::a671:74ff:fe2b:c137%ue0 UG
     3   1460      ue0

% ping6 -c 2 www.freebsd.org
PING6(56=40+8+8 bytes) 2605:8d80:6e3:f899:e5b:8fff:fe27:9a64 -->
2001:1900:2254:206a::50:0
16 bytes from 2001:1900:2254:206a::50:0, icmp_seq=0 hlim=50 time=382.217 ms
16 bytes from 2001:1900:2254:206a::50:0, icmp_seq=1 hlim=50 time=149.969 ms

--- wfe0.ysv.freebsd.org ping6 statistics ---
2 packets transmitted, 2 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 149.969/266.093/382.217/116.124 ms
% ifconfig ue0
ue0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0
mtu 1500
        ether 0c:5b:8f:27:9a:64
        hwaddr 0c:5b:8f:27:9a:64
        inet6 fe80::e5b:8fff:fe27:9a64%ue0 prefixlen 64 scopeid 0x10
        inet6 2605:8d80:6e3:f899:e5b:8fff:fe27:9a64 prefixlen 64 autoconf
        inet 192.168.8.100 netmask 0xffffff00 broadcast 192.168.8.255
        nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>


About 6 min after boot up, the kernel (pid 0?) deletes the default route
for whatever reason (output from route monitor)

got message of size 312 on Mon Jul 31 13:28:31 2017
RTM_DELETE: Delete Route: len 312, pid: 0, seq 0, errno 0,
flags:<GATEWAY,DONE>
locks:  inits:
sockaddrs: <DST,GATEWAY,NETMASK,IFP,IFA>
 default fe80::a671:74ff:fe2b:c137%ue0 default ue0:c.5b.8f.27.9a.64
fe80::e5b:8fff:fe27:9a64%ue0

	---Mike



-- 
-------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike at sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada   http://www.tancsa.com/