#18774: "Unstable" native IPv6 connectivity
-----------------------+-----------------------------------
Reporter: kweasdz@… | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone:
Component: packages | Version: Barrier Breaker 14.07
Keywords: ipv6 |
-----------------------+-----------------------------------
I am experiencing some issues with IPv6, with random loss of connectivity
for just a couple of seconds every few minutes.
The device is a TP-Link TL-WR1043N/ND v1, with OpenWrt Barrier Breaker
14.07 / LuCI Trunk (0.12+svn-r10530).
Here is how the problem crops up, from the router itself:
{{{
root@OpenWrt:~# ping6 ipv6.google.com; date;
PING ipv6.google.com (2a00:1450:4002:803::1001): 56 data bytes
64 bytes from 2a00:1450:4002:803::1001: seq=0 ttl=54 time=61.890 ms
64 bytes from 2a00:1450:4002:803::1001: seq=1 ttl=54 time=69.995 ms
...
64 bytes from 2a00:1450:4002:803::1001: seq=33 ttl=54 time=61.915 ms
64 bytes from 2a00:1450:4002:803::1001: seq=34 ttl=52 time=81.109 ms
ping6: sendto: Operation not permitted
Mon Jan 12 22:36:26 UTC 2015
}}}
Connectivity is re-established almost immediately. When pinging from a
host on the lan, for a few seconds the error "Destination unreachable: No
route" is shown. Moreover, the pppoe connection stays up during the event.
logread (mac addresses are stripped out)
{{{
Mon Jan 12 22:31:57 2015 daemon.notice odhcp6c[1062]: Starting RENEW
transaction (timeout 108s, max rc 0)
Mon Jan 12 22:31:57 2015 daemon.notice odhcp6c[1062]: Send RENEW message
(elapsed 0ms, rc 0)
Mon Jan 12 22:31:57 2015 daemon.notice odhcp6c[1062]: Got a valid reply
after 60ms
Mon Jan 12 22:31:57 2015 daemon.warn odhcp6c[1062]: Server returned
message status 0
Mon Jan 12 22:31:57 2015 daemon.notice odhcp6c[1062]: Starting <POLL>
transaction (timeout 180s, max rc 0)
Mon Jan 12 22:34:57 2015 daemon.notice odhcp6c[1062]: Starting RENEW
transaction (timeout 108s, max rc 0)
Mon Jan 12 22:34:57 2015 daemon.notice odhcp6c[1062]: Send RENEW message
(elapsed 0ms, rc 0)
Mon Jan 12 22:34:57 2015 daemon.notice odhcp6c[1062]: Got a valid reply
after 58ms
Mon Jan 12 22:34:57 2015 daemon.warn odhcp6c[1062]: Server returned
message status 0
Mon Jan 12 22:34:57 2015 daemon.notice odhcp6c[1062]: Starting <POLL>
transaction (timeout 180s, max rc 0)
Mon Jan 12 22:37:23 2015 daemon.info dnsmasq-dhcp[1136]: DHCPINFORM(br-
lan) 192.168.0.209 ee:ee:ee:ee:ee:ee
Mon Jan 12 22:37:23 2015 daemon.info dnsmasq-dhcp[1136]: DHCPACK(br-lan)
192.168.0.209 ee:ee:ee:ee:ee:ee PC-abc2
Mon Jan 12 22:37:57 2015 daemon.notice odhcp6c[1062]: Starting RENEW
transaction (timeout 108s, max rc 0)
Mon Jan 12 22:37:57 2015 daemon.notice odhcp6c[1062]: Send RENEW message
(elapsed 0ms, rc 0)
Mon Jan 12 22:37:57 2015 daemon.notice odhcp6c[1062]: Got a valid reply
after 58ms
Mon Jan 12 22:37:57 2015 daemon.warn odhcp6c[1062]: Server returned
message status 0
Mon Jan 12 22:37:57 2015 daemon.notice odhcp6c[1062]: Starting <POLL>
transaction (timeout 180s, max rc 0)
}}}
Here is also an excerpt of /etc/config/network:
{{{
config interface 'wan'
option ifname 'eth0.2'
option proto 'pppoe'
option peerdns '0'
option dns '8.8.8.8 8.8.4.4'
option username '[email protected]'
option password 'IPV6@alice6'
config interface 'wan6'
option ifname '@wan'
option proto 'dhcpv6'
option peerdns '0'
option dns '2001:4860:4860::8888 2001:4860:4860::8844'
}}}
/etc/config/dhcp
{{{
config dnsmasq
option domainneeded '1'
option boguspriv '1'
option filterwin2k '0'
option localise_queries '1'
option rebind_protection '1'
option rebind_localhost '1'
option local '/lan/'
option domain 'lan'
option expandhosts '1'
option nonegcache '0'
option authoritative '1'
option readethers '1'
option leasefile '/tmp/dhcp.leases'
option resolvfile '/tmp/resolv.conf.auto'
config dhcp 'lan'
option interface 'lan'
option start '100'
option limit '150'
option leasetime '12h'
option dhcpv6 'server'
option ra 'server'
option ra_management '1'
config dhcp 'wan'
option interface 'wan'
option ignore '1'
config odhcpd 'odhcpd'
option maindhcp '0'
option leasefile '/tmp/hosts/odhcpd'
option leasetrigger '/usr/sbin/odhcpd-update'
}}}
Thanks.
--
Ticket URL: <https://dev.openwrt.org/ticket/18774>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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