the vm actually got the default route ::/0 fe80::f816:3eff:fe0c:1851
UGDAe 1024 0 0 eth0 to router's link local address, which is how ipv6
router advertisement works.
** Changed in: neutron
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1407859
Title:
vm can't get default route for ipv6 in slaac mode
Status in OpenStack Neutron (virtual network service):
Invalid
Bug description:
neutron subnet-show ipv6
+-------------------+------------------------------------------------------------------------+
| Field | Value
|
+-------------------+------------------------------------------------------------------------+
| allocation_pools | {"start": "2001:470:bb86:0001::20", "end":
"2001:470:bb86:0001::fffe"} |
| cidr | 2001:470:bb86:1::/64
|
| dns_nameservers |
|
| enable_dhcp | True
|
| gateway_ip | 2001:470:bb86:0001::3
|
| host_routes | {"destination": "2000::/3", "nexthop":
"2001:470:bb86:0001::1"} |
| id | ab6f2e9e-a992-40e7-a5c5-fb45f0e28bf9
|
| ip_version | 6
|
| ipv6_address_mode | slaac
|
| ipv6_ra_mode | slaac
|
| name | ipv6
|
| network_id | baaa8401-d5af-44cb-8afc-3ba0f34b117b
|
| tenant_id | 1bfd6b2b81624fc5af3f068230654b84
|
+-------------------+------------------------------------------------------------------------+
neutron security-group-show b97915cf-52c2-45df-be46-9d37565e4331
+----------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Field | Value
|
+----------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| description | Default security group
|
| id | b97915cf-52c2-45df-be46-9d37565e4331
|
| name | default
|
| security_group_rules | {"remote_group_id": null, "direction": "ingress",
"remote_ip_prefix": null, "protocol": "tcp", "tenant_id":
"1bfd6b2b81624fc5af3f068230654b84", "port_range_max": 65535,
"security_group_id": "b97915cf-52c2-45df-be46-9d37565e4331", "port_range_min":
22, "ethertype": "IPv4", "id": "34133bde-350d-41c3-99b8-f4588ff5489a"}
|
| | {"remote_group_id": null, "direction": "egress",
"remote_ip_prefix": null, "protocol": null, "tenant_id":
"1bfd6b2b81624fc5af3f068230654b84", "port_range_max": null,
"security_group_id": "b97915cf-52c2-45df-be46-9d37565e4331", "port_range_min":
null, "ethertype": "IPv6", "id": "404bd961-a69c-45f1-91c1-948042e6e9fd"}
|
| | {"remote_group_id": null, "direction": "ingress",
"remote_ip_prefix": null, "protocol": "tcp", "tenant_id":
"1bfd6b2b81624fc5af3f068230654b84", "port_range_max": 65535,
"security_group_id": "b97915cf-52c2-45df-be46-9d37565e4331", "port_range_min":
22, "ethertype": "IPv6", "id": "54508709-7c08-4109-84f0-3f8a86701423"}
|
| | {"remote_group_id": null, "direction": "ingress",
"remote_ip_prefix": null, "protocol": "icmp", "tenant_id":
"1bfd6b2b81624fc5af3f068230654b84", "port_range_max": null,
"security_group_id": "b97915cf-52c2-45df-be46-9d37565e4331", "port_range_min":
null, "ethertype": "IPv4", "id": "6cc63a15-36a2-41fa-bae4-799a28ca3c8f"}
|
| | {"remote_group_id":
"b97915cf-52c2-45df-be46-9d37565e4331", "direction": "ingress",
"remote_ip_prefix": null, "protocol": null, "tenant_id":
"1bfd6b2b81624fc5af3f068230654b84", "port_range_max": null,
"security_group_id": "b97915cf-52c2-45df-be46-9d37565e4331", "port_range_min":
null, "ethertype": "IPv4", "id": "82c8e2e4-4cf3-4f35-ae72-d4e711d765fd"} |
| | {"remote_group_id": null, "direction": "egress",
"remote_ip_prefix": null, "protocol": null, "tenant_id":
"1bfd6b2b81624fc5af3f068230654b84", "port_range_max": null,
"security_group_id": "b97915cf-52c2-45df-be46-9d37565e4331", "port_range_min":
null, "ethertype": "IPv4", "id": "865414f6-be7d-4ebc-a5ab-c576802f6d55"}
|
| | {"remote_group_id":
"b97915cf-52c2-45df-be46-9d37565e4331", "direction": "ingress",
"remote_ip_prefix": null, "protocol": null, "tenant_id":
"1bfd6b2b81624fc5af3f068230654b84", "port_range_max": null,
"security_group_id": "b97915cf-52c2-45df-be46-9d37565e4331", "port_range_min":
null, "ethertype": "IPv6", "id": "8a341930-89e0-48fe-9b38-9f790ec24da8"} |
| | {"remote_group_id": null, "direction": "ingress",
"remote_ip_prefix": null, "protocol": "icmp", "tenant_id":
"1bfd6b2b81624fc5af3f068230654b84", "port_range_max": null,
"security_group_id": "b97915cf-52c2-45df-be46-9d37565e4331", "port_range_min":
null, "ethertype": "IPv6", "id": "fcafbf1a-54cb-4c09-a568-04597615d14e"}
|
| tenant_id | 1bfd6b2b81624fc5af3f068230654b84
|
+----------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
ps -ef|grep radvd
root 15818 1 0 Jan04 ? 00:00:00 radvd -C
/var/run/neutron/ra/6066faaa-0e35-4e7b-8988-7337c493bad7.radvd.conf -p
/var/run/neutron/external/pids/6066faaa-0e35-4e7b-8988-7337c493bad7.pid.radvd
root 15820 1 0 Jan04 ? 00:00:10 radvd -C
/var/run/neutron/ra/6066faaa-0e35-4e7b-8988-7337c493bad7.radvd.conf -p
/var/run/neutron/external/pids/6066faaa-0e35-4e7b-8988-7337c493bad7.pid.radvd
root 21009 20939 0 04:04 pts/0 00:00:00 grep --color=auto radvd
ip netns exec qrouter-6066faaa-0e35-4e7b-8988-7337c493bad7 ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
qr-9d527362-c4 Link encap:Ethernet HWaddr fa:16:3e:0c:18:51
inet6 addr: fe80::f816:3eff:fe0c:1851/64 Scope:Link
inet6 addr: 2001:470:bb86:1::3/64 Scope:Global
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:465506 errors:0 dropped:0 overruns:0 frame:0
TX packets:27543 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:57806912 (57.8 MB) TX bytes:3031970 (3.0 MB)
qr-dc3e05a5-81 Link encap:Ethernet HWaddr fa:16:3e:2f:07:8f
inet addr:162.3.122.1 Bcast:162.3.122.255 Mask:255.255.255.0
inet6 addr: fe80::f816:3eff:fe2f:78f/64 Scope:Link
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:490910 errors:0 dropped:0 overruns:0 frame:0
TX packets:586 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:60573736 (60.5 MB) TX bytes:66617 (66.6 KB)
On the VM:
root@demo4:/home/ubuntu# ifconfig
eth0 Link encap:Ethernet HWaddr fa:16:3e:81:20:07
inet addr:162.3.122.58 Bcast:162.3.122.255 Mask:255.255.255.0
inet6 addr: 2001:470:bb86:1:f816:3eff:fe81:2007/64 Scope:Global
inet6 addr: fe80::f816:3eff:fe81:2007/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1400 Metric:1
RX packets:24283 errors:0 dropped:0 overruns:0 frame:0
TX packets:623 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2662425 (2.6 MB) TX bytes:66576 (66.5 KB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
root@demo4:/home/ubuntu# route -6
Kernel IPv6 routing table
Destination Next Hop Flag Met Ref Use If
2001:470:bb86:1::/64 :: UAe 256 0 0
eth0
fe80::/64 :: U 256 0 0
eth0
::/0 fe80::f816:3eff:fe0c:1851 UGDAe 1024 0 0
eth0
::/0 :: !n -1 1 49 lo
::1/128 :: Un 0 1 3 lo
2001:470:bb86:1:f816:3eff:fe81:2007/128 :: Un 0 1
0 lo
fe80::f816:3eff:fe81:2007/128 :: Un 0 1 134 lo
ff00::/8 :: U 256 1 0
eth0
::/0 :: !n -1 1 49 lo
root@demo4:/home/ubuntu#
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