yahoo-eng-team team mailing list archive
-
yahoo-eng-team team
-
Mailing list archive
-
Message #53927
[Bug 1459042] Re: Cirros should report IPv6 connectivity when booting
The output in question comes from cloud-init, so added that package.
After doing a bit of debugging, there seem to be two issues here:
1. The output is created too early when the IPv6 network is using slaac,
so this means that there is no IPv6 address listed because it takes a
bit longer to show up. If I call cloudinit.netinfo.debug_info() on a
running system after booting has finished, the IPv6 address information
is shown correctly.
2. Routes for IPv6 are never shown correctly. cloud-init uses a call to
"netstat -rn", which only outputs IPv4 routes at least on Xenial.
Running "netstat -rn46" shows routes for both address families, but that
output doesn't seem to get parsed properly.
** Also affects: cloud-init
Importance: Undecided
Status: New
** Summary changed:
- Cirros should report IPv6 connectivity when booting
+ cloud-init fails to report IPv6 connectivity when booting
** Changed in: cloud-init
Status: New => Confirmed
** Changed in: cirros
Status: Confirmed => Invalid
** Description changed:
It would be convenient to see the IPv6 networking information printed at
boot, similar to the IPv4 networking information currently is.
+
+ Output from the boot log:
+ [ 15.621085] cloud-init[1058]: Cloud-init v. 0.7.7 running 'init' at Tue, 14 Jun 2016 13:48:14 +0000. Up 6.71 seconds.
+ [ 15.622670] cloud-init[1058]: ci-info: ++++++++++++++++++++++++++++Net device info+++++++++++++++++++++++++++++
+ [ 15.624106] cloud-init[1058]: ci-info: +--------+------+------------+-------------+-------+-------------------+
+ [ 15.625516] cloud-init[1058]: ci-info: | Device | Up | Address | Mask | Scope | Hw-Address |
+ [ 15.627058] cloud-init[1058]: ci-info: +--------+------+------------+-------------+-------+-------------------+
+ [ 15.628504] cloud-init[1058]: ci-info: | ens3: | True | 10.42.0.48 | 255.255.0.0 | . | fa:16:3e:f9:86:07 |
+ [ 15.629930] cloud-init[1058]: ci-info: | ens3: | True | . | . | d | fa:16:3e:f9:86:07 |
+ [ 15.631334] cloud-init[1058]: ci-info: | lo: | True | 127.0.0.1 | 255.0.0.0 | . | . |
+ [ 15.632765] cloud-init[1058]: ci-info: | lo: | True | . | . | d | . |
+ [ 15.634221] cloud-init[1058]: ci-info: +--------+------+------------+-------------+-------+-------------------+
+ [ 15.635671] cloud-init[1058]: ci-info: +++++++++++++++++++++++++++++++Route IPv4 info+++++++++++++++++++++++++++++++
+ [ 15.637186] cloud-init[1058]: ci-info: +-------+-----------------+-----------+-----------------+-----------+-------+
+ [ 15.638682] cloud-init[1058]: ci-info: | Route | Destination | Gateway | Genmask | Interface | Flags |
+ [ 15.640182] cloud-init[1058]: ci-info: +-------+-----------------+-----------+-----------------+-----------+-------+
+ [ 15.641657] cloud-init[1058]: ci-info: | 0 | 0.0.0.0 | 10.42.0.1 | 0.0.0.0 | ens3 | UG |
+ [ 15.643149] cloud-init[1058]: ci-info: | 1 | 10.42.0.0 | 0.0.0.0 | 255.255.0.0 | ens3 | U |
+ [ 15.644661] cloud-init[1058]: ci-info: | 2 | 169.254.169.254 | 10.42.0.1 | 255.255.255.255 | ens3 | UGH |
+ [ 15.646175] cloud-init[1058]: ci-info: +-------+-----------------+-----------+-----------------+-----------+-------+
+
+ Output from running system:
+ ci-info: +++++++++++++++++++++++++++++++++++++++++++++++Net device info+++++++++++++++++++++++++++++++++++++++++++++++
+ ci-info: +------------+-------+-----------------------------------------+---------------+--------+-------------------+
+ ci-info: | Device | Up | Address | Mask | Scope | Hw-Address |
+ ci-info: +------------+-------+-----------------------------------------+---------------+--------+-------------------+
+ ci-info: | ens3 | True | 10.42.0.44 | 255.255.0.0 | . | fa:16:3e:90:11:e0 |
+ ci-info: | ens3 | True | 2a04:3b40:8010:1:f816:3eff:fe90:11e0/64 | . | global | fa:16:3e:90:11:e0 |
+ ci-info: | lo | True | 127.0.0.1 | 255.0.0.0 | . | . |
+ ci-info: | lo | True | ::1/128 | . | host | . |
+ ci-info: +------------+-------+-----------------------------------------+---------------+--------+-------------------+
+ ci-info: +++++++++++++++++++++++++++++++Route IPv4 info+++++++++++++++++++++++++++++++
+ ci-info: +-------+-----------------+-----------+-----------------+-----------+-------+
+ ci-info: | Route | Destination | Gateway | Genmask | Interface | Flags |
+ ci-info: +-------+-----------------+-----------+-----------------+-----------+-------+
+ ci-info: | 0 | 0.0.0.0 | 10.42.0.1 | 0.0.0.0 | ens3 | UG |
+ ci-info: | 1 | 10.42.0.0 | 0.0.0.0 | 255.255.0.0 | ens3 | U |
+ ci-info: | 2 | 169.254.169.254 | 10.42.0.1 | 255.255.255.255 | ens3 | UGH |
+ ci-info: +-------+-----------------+-----------+-----------------+-----------+-------+
+
+ $ netstat -rn46
+ Kernel IP routing table
+ Destination Gateway Genmask Flags MSS Window irtt Iface
+ 0.0.0.0 10.42.0.1 0.0.0.0 UG 0 0 0 ens3
+ 10.42.0.0 0.0.0.0 255.255.0.0 U 0 0 0 ens3
+ 169.254.169.254 10.42.0.1 255.255.255.255 UGH 0 0 0 ens3
+ 192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
+ Kernel IPv6 routing table
+ Destination Next Hop Flag Met Ref Use If
+ 2a04:3b40:8010:1::/64 :: UAe 256 0 0 ens3
+ fe80::/64 :: U 256 0 0 ens3
+ ::/0 fe80::f816:3eff:fed0:2be5 UGDAe 1024 4 119 ens3
+ ::/0 :: !n -1 1 789 lo
+ ::1/128 :: Un 0 9 7428 lo
+ 2a04:3b40:8010:1:f816:3eff:fe90:11e0/128 :: Un 0 2 444 lo
+ fe80::f816:3eff:fe90:11e0/128 :: Un 0 2 167 lo
+ ff00::/8 :: U 256 2 29412 ens3
+ ::/0 :: !n -1 1 789 lo
--
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to cloud-init.
https://bugs.launchpad.net/bugs/1459042
Title:
cloud-init fails to report IPv6 connectivity when booting
Status in CirrOS:
Invalid
Status in cloud-init:
Confirmed
Bug description:
It would be convenient to see the IPv6 networking information printed
at boot, similar to the IPv4 networking information currently is.
Output from the boot log:
[ 15.621085] cloud-init[1058]: Cloud-init v. 0.7.7 running 'init' at Tue, 14 Jun 2016 13:48:14 +0000. Up 6.71 seconds.
[ 15.622670] cloud-init[1058]: ci-info: ++++++++++++++++++++++++++++Net device info+++++++++++++++++++++++++++++
[ 15.624106] cloud-init[1058]: ci-info: +--------+------+------------+-------------+-------+-------------------+
[ 15.625516] cloud-init[1058]: ci-info: | Device | Up | Address | Mask | Scope | Hw-Address |
[ 15.627058] cloud-init[1058]: ci-info: +--------+------+------------+-------------+-------+-------------------+
[ 15.628504] cloud-init[1058]: ci-info: | ens3: | True | 10.42.0.48 | 255.255.0.0 | . | fa:16:3e:f9:86:07 |
[ 15.629930] cloud-init[1058]: ci-info: | ens3: | True | . | . | d | fa:16:3e:f9:86:07 |
[ 15.631334] cloud-init[1058]: ci-info: | lo: | True | 127.0.0.1 | 255.0.0.0 | . | . |
[ 15.632765] cloud-init[1058]: ci-info: | lo: | True | . | . | d | . |
[ 15.634221] cloud-init[1058]: ci-info: +--------+------+------------+-------------+-------+-------------------+
[ 15.635671] cloud-init[1058]: ci-info: +++++++++++++++++++++++++++++++Route IPv4 info+++++++++++++++++++++++++++++++
[ 15.637186] cloud-init[1058]: ci-info: +-------+-----------------+-----------+-----------------+-----------+-------+
[ 15.638682] cloud-init[1058]: ci-info: | Route | Destination | Gateway | Genmask | Interface | Flags |
[ 15.640182] cloud-init[1058]: ci-info: +-------+-----------------+-----------+-----------------+-----------+-------+
[ 15.641657] cloud-init[1058]: ci-info: | 0 | 0.0.0.0 | 10.42.0.1 | 0.0.0.0 | ens3 | UG |
[ 15.643149] cloud-init[1058]: ci-info: | 1 | 10.42.0.0 | 0.0.0.0 | 255.255.0.0 | ens3 | U |
[ 15.644661] cloud-init[1058]: ci-info: | 2 | 169.254.169.254 | 10.42.0.1 | 255.255.255.255 | ens3 | UGH |
[ 15.646175] cloud-init[1058]: ci-info: +-------+-----------------+-----------+-----------------+-----------+-------+
Output from running system:
ci-info: +++++++++++++++++++++++++++++++++++++++++++++++Net device info+++++++++++++++++++++++++++++++++++++++++++++++
ci-info: +------------+-------+-----------------------------------------+---------------+--------+-------------------+
ci-info: | Device | Up | Address | Mask | Scope | Hw-Address |
ci-info: +------------+-------+-----------------------------------------+---------------+--------+-------------------+
ci-info: | ens3 | True | 10.42.0.44 | 255.255.0.0 | . | fa:16:3e:90:11:e0 |
ci-info: | ens3 | True | 2a04:3b40:8010:1:f816:3eff:fe90:11e0/64 | . | global | fa:16:3e:90:11:e0 |
ci-info: | lo | True | 127.0.0.1 | 255.0.0.0 | . | . |
ci-info: | lo | True | ::1/128 | . | host | . |
ci-info: +------------+-------+-----------------------------------------+---------------+--------+-------------------+
ci-info: +++++++++++++++++++++++++++++++Route IPv4 info+++++++++++++++++++++++++++++++
ci-info: +-------+-----------------+-----------+-----------------+-----------+-------+
ci-info: | Route | Destination | Gateway | Genmask | Interface | Flags |
ci-info: +-------+-----------------+-----------+-----------------+-----------+-------+
ci-info: | 0 | 0.0.0.0 | 10.42.0.1 | 0.0.0.0 | ens3 | UG |
ci-info: | 1 | 10.42.0.0 | 0.0.0.0 | 255.255.0.0 | ens3 | U |
ci-info: | 2 | 169.254.169.254 | 10.42.0.1 | 255.255.255.255 | ens3 | UGH |
ci-info: +-------+-----------------+-----------+-----------------+-----------+-------+
$ netstat -rn46
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
0.0.0.0 10.42.0.1 0.0.0.0 UG 0 0 0 ens3
10.42.0.0 0.0.0.0 255.255.0.0 U 0 0 0 ens3
169.254.169.254 10.42.0.1 255.255.255.255 UGH 0 0 0 ens3
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
Kernel IPv6 routing table
Destination Next Hop Flag Met Ref Use If
2a04:3b40:8010:1::/64 :: UAe 256 0 0 ens3
fe80::/64 :: U 256 0 0 ens3
::/0 fe80::f816:3eff:fed0:2be5 UGDAe 1024 4 119 ens3
::/0 :: !n -1 1 789 lo
::1/128 :: Un 0 9 7428 lo
2a04:3b40:8010:1:f816:3eff:fe90:11e0/128 :: Un 0 2 444 lo
fe80::f816:3eff:fe90:11e0/128 :: Un 0 2 167 lo
ff00::/8 :: U 256 2 29412 ens3
::/0 :: !n -1 1 789 lo
To manage notifications about this bug go to:
https://bugs.launchpad.net/cirros/+bug/1459042/+subscriptions
