dhcpcd-discuss

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On 04/21/17 14:48, Stuart Henderson wrote:
> 
> Unless I misunderstand the problem I think this may have been fixed in -current (as of sys/netinet6/in6.c r1.201, committed this week).
> 
> Harald, can you try a recent snapshot kernel and this ports patch? (At this point if you're on 6.1 release you should be able to get away with just using a snapshot kernel without updating userland).
> 

Done. The snapshots kernel was built this morning at 7:10. After a
reboot the patched dhcpcd gave me

Apr 21 16:52:29 marvin dhcpcd[38405]: DUID 00:01:00:01:20:79:21:d4:80:ee:73:95:c1:0c
Apr 21 16:52:29 marvin dhcpcd[38405]: pppoe0: IAID 00:00:00:00
Apr 21 16:52:29 marvin dhcpcd[38405]: pppoe0: rebinding prior DHCPv6 lease
Apr 21 16:52:29 marvin dhcpcd[38405]: re1: waiting for carrier
Apr 21 16:52:30 marvin dhcpcd[38405]: pppoe0: soliciting an IPv6 router
Apr 21 16:52:30 marvin dhcpcd[38405]: re1: carrier acquired
Apr 21 16:52:30 marvin dhcpcd[38405]: re1: IAID 73:95:c1:0d
Apr 21 16:52:31 marvin dhcpcd[38405]: pppoe0: Router Advertisement from fe80::101:101:3e9b:f1ab
Apr 21 16:52:31 marvin dhcpcd[38405]: pppoe0: adding address 2003:dd:b3bf:2e18:665a:4ff:fe35:830a/64
Apr 21 16:52:39 marvin dhcpcd[38405]: pppoe0: failed to rebind prior delegation
Apr 21 16:52:39 marvin dhcpcd[38405]: pppoe0: soliciting a DHCPv6 lease
Apr 21 16:52:41 marvin dhcpcd[38405]: pppoe0: REPLY6 received from fe80::101:101:3e9b:f1ab
Apr 21 16:52:41 marvin dhcpcd[38405]: pppoe0: renew in 900, rebind in 1440, expire in 14400 seconds
Apr 21 16:52:41 marvin dhcpcd[38405]: lo0: adding reject route to 2003:dd:b3ee:1800::/56 via ::1
Apr 21 16:52:41 marvin dhcpcd[38405]: pppoe0: delegated prefix 2003:dd:b3ee:1800::/56
Apr 21 16:52:41 marvin dhcpcd[38405]: re1: adding address 2003:dd:b3ee:1800::1/56
Apr 21 16:52:41 marvin dhcpcd[38405]: re1: changing route to 2003:dd:b3ee:1800::/56
Apr 21 16:52:41 marvin dhcpcd[38405]: forked to background, child pid 74240

# ifconfig pppoe0 down
# ifconfig pppoe0 up

Apr 21 16:53:32 marvin dhcpcd[74240]: pppoe0: carrier lost
Apr 21 16:53:32 marvin dhcpcd[74240]: pppoe0: deleting address 2003:dd:b3bf:2e18:665a:4ff:fe35:830a/64
Apr 21 16:53:32 marvin dhcpcd[74240]: pppoe0: if_addrflags: 93.233.195.203: Undefined error: 0
Apr 21 16:53:32 marvin dhcpcd[74240]: pppoe0: if_addrflags: Undefined error: 0
Apr 21 16:54:02 marvin dhcpcd[74240]: pppoe0: carrier acquired
Apr 21 16:54:02 marvin dhcpcd[74240]: pppoe0: IAID 00:00:00:00
Apr 21 16:54:02 marvin dhcpcd[74240]: pppoe0: rebinding prior DHCPv6 lease
Apr 21 16:54:02 marvin dhcpcd[74240]: pppoe0: Router Advertisement from fe80::101:101:3e9b:f1ab
Apr 21 16:54:02 marvin dhcpcd[74240]: pppoe0: adding address 2003:dd:b3bf:2e1c:665a:4ff:fe35:830a/64
Apr 21 16:54:12 marvin dhcpcd[74240]: pppoe0: failed to rebind prior delegation
Apr 21 16:54:12 marvin dhcpcd[74240]: pppoe0: soliciting a DHCPv6 lease
Apr 21 16:54:15 marvin dhcpcd[74240]: pppoe0: REPLY6 received from fe80::101:101:3e9b:f1ab
Apr 21 16:54:15 marvin dhcpcd[74240]: pppoe0: renew in 900, rebind in 1440, expire in 14400 seconds
Apr 21 16:54:15 marvin dhcpcd[74240]: lo0: adding reject route to 2003:dd:b3ee:1c00::/56 via ::1
Apr 21 16:54:15 marvin dhcpcd[74240]: pppoe0: delegated prefix 2003:dd:b3ee:1c00::/56
Apr 21 16:54:15 marvin dhcpcd[74240]: re1: adding address 2003:dd:b3ee:1c00::1/56
Apr 21 16:54:15 marvin dhcpcd[74240]: re1: changing route to 2003:dd:b3ee:1c00::/56

The error message after "carrier lost" is gone. The "failed to rebind
prior delegation" is still there, but this might be an issue of
Deutsche Telekom.

I still have an invalid IPv6 address bound to re1, but both have
a limited lifetime now:

# ifconfig re1
re1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        lladdr 80:ee:73:95:c1:0d
        index 3 priority 0 llprio 3
        groups: intern
        media: Ethernet autoselect (1000baseT full-duplex,rxpause,txpause)
        status: active
        inet 10.42.100.2 netmask 0xffffff00 broadcast 10.42.100.255
        inet6 fe80::82ee:73ff:fe95:c10d%re1 prefixlen 64 scopeid 0x3
        inet6 2003:dd:b3ee:1800::1 prefixlen 56 pltime 1377 vltime 13977
        inet6 2003:dd:b3ee:1c00::1 prefixlen 56 pltime 1470 vltime 14070

Question: Shouldn't the old IPv6 address be marked as "deprecated"? I am not
sure if ifconfig can show.

Without this deprecated flag dnsmasq doesn't know. It still picks up both
prefixes and distributes them in my LAN.


Regards
Harri

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