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Message #84146
[Bug 1888464] Re: IPv6 PD with DVR does not assign correct snat sg address
[Expired for neutron because there has been no activity for 60 days.]
** Changed in: neutron
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1888464
Title:
IPv6 PD with DVR does not assign correct snat sg address
Status in neutron:
Expired
Bug description:
I am running Stein with control node using dvr_snat and compute node
with dvr configuration
When testing out with IPv6 prefix delegation in my test environment,
the subnet gets the ipv6 prefix but the sg port in snat namespace does
not get the assigned address. The external traffic is also unable to
work.
I have the 2001:db9:1111:1::/64 as the external network prefix. The
v6_sub subnet gets 2001:db9:1111:ff00::/64 prefix from the PD server.
[root@osc /]# cat /etc/neutron/l3_agent.ini
[DEFAULT]
interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver
external_network_bridge =
agent_mode = dvr_snat
[root@osc /]# neutron subnet-show v6_sub
+-------------------+-------------------------------------------------------------------------------------+
| Field | Value |
+-------------------+-------------------------------------------------------------------------------------+
| allocation_pools | {"start": "2001:db9:1111:ff00::2", "end": "2001:db9:1111:ff00:ffff:ffff:ffff:ffff"} |
| cidr | 2001:db9:1111:ff00::/64 |
| created_at | 2020-07-21T09:25:50Z |
| description | |
| dns_nameservers | |
| enable_dhcp | True |
| gateway_ip | 2001:db9:1111:ff00::1 |
| host_routes | |
| id | b06cd6b4-d2dd-4584-a4a3-96249c60dffa |
| ip_version | 6 |
| ipv6_address_mode | slaac |
| ipv6_ra_mode | slaac |
| name | v6_sub |
| network_id | 32e9816f-ee51-43b0-9626-ea845153a79c |
| project_id | 54431f7b41fd426283ca5cb6d11d0b72 |
| revision_number | 28 |
| service_types | |
| subnetpool_id | prefix_delegation |
| tags | |
| tenant_id | 54431f7b41fd426283ca5cb6d11d0b72 |
| updated_at | 2020-07-22T02:44:36Z |
+-------------------+-------------------------------------------------------------------------------------+
[root@osc /]# ip netns
fip-13089d04-f611-49f0-bf86-20ad77bae361
snat-7acc2577-19b4-4814-a9a7-bc1dc2d467b8
qdhcp-13089d04-f611-49f0-bf86-20ad77bae361
qdhcp-32e9816f-ee51-43b0-9626-ea845153a79c
qrouter-7acc2577-19b4-4814-a9a7-bc1dc2d467b8
qdhcp-40e020c6-a046-4ce2-a461-2f421413d10a
[root@osc /]# ip netns exec snat-7acc2577-19b4-4814-a9a7-bc1dc2d467b8 ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: gre0@NONE: <NOARP> mtu 1476 qdisc noop state DOWN group default qlen 1000
link/gre 0.0.0.0 brd 0.0.0.0
3: gretap0@NONE: <BROADCAST,MULTICAST> mtu 1462 qdisc noop state DOWN group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
4: erspan0@NONE: <BROADCAST,MULTICAST> mtu 1450 qdisc noop state DOWN group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
24: qg-f1c0e77c-ee: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
link/ether fa:16:3e:9e:50:c8 brd ff:ff:ff:ff:ff:ff
inet6 2001:db9:1111:1::238/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::f816:3eff:fefa:5055/64 scope link
valid_lft forever preferred_lft forever
inet6 fe80::f816:3eff:fe9e:50c8/64 scope link
valid_lft forever preferred_lft forever
43: sg-230491ca-5b: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue state UNKNOWN group default qlen 1000
link/ether fa:16:3e:ab:6f:01 brd ff:ff:ff:ff:ff:ff
inet6 ::364/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::f816:3eff:feab:6f01/64 scope link
valid_lft forever preferred_lft forever
[root@osc /]# ip netns exec qdhcp-32e9816f-ee51-43b0-9626-ea845153a79c ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: gre0@NONE: <NOARP> mtu 1476 qdisc noop state DOWN group default qlen 1000
link/gre 0.0.0.0 brd 0.0.0.0
3: gretap0@NONE: <BROADCAST,MULTICAST> mtu 1462 qdisc noop state DOWN group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
4: erspan0@NONE: <BROADCAST,MULTICAST> mtu 1450 qdisc noop state DOWN group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
17: tapdcd42808-c2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue state UNKNOWN group default qlen 1000
link/ether fa:16:3e:fe:1e:a0 brd ff:ff:ff:ff:ff:ff
inet 169.254.169.254/16 brd 169.254.255.255 scope global tapdcd42808-c2
valid_lft forever preferred_lft forever
inet6 2001:db9:1111:ff00:f816:3eff:fefe:1ea0/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::f816:3eff:fefe:1ea0/64 scope link
valid_lft forever preferred_lft forever
[root@osc /]# ip netns exec qrouter-7acc2577-19b4-4814-a9a7-bc1dc2d467b8 ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: gre0@NONE: <NOARP> mtu 1476 qdisc noop state DOWN group default qlen 1000
link/gre 0.0.0.0 brd 0.0.0.0
3: gretap0@NONE: <BROADCAST,MULTICAST> mtu 1462 qdisc noop state DOWN group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
4: erspan0@NONE: <BROADCAST,MULTICAST> mtu 1450 qdisc noop state DOWN group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
7: rfp-7acc2577-1@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether ee:a5:99:38:55:d7 brd ff:ff:ff:ff:ff:ff link-netnsid 0
inet 169.254.106.114/31 scope global rfp-7acc2577-1
valid_lft forever preferred_lft forever
inet6 fe80::eca5:99ff:fe38:55d7/64 scope link
valid_lft forever preferred_lft forever
42: qr-c4b8d402-83: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue state UNKNOWN group default qlen 1000
link/ether fa:16:3e:fa:50:55 brd ff:ff:ff:ff:ff:ff
inet6 2001:db9:1111:ff00::1/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::f816:3eff:fefa:5055/64 scope link
valid_lft forever preferred_lft forever
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