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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Which version of OpenStack? If the router is plugged into br-ex and not br-int you may see this condition. Often, an external bridge like br-ex is not properly configured, leading
to issues. You might try creating a provider bridge using the ovs-vsctl tool, defining the mapping in the plugin configuration file, and using router-gateway-set to associate the router with that network.
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<div>It would help to see your 'ovs-vsctl show' output along with the plugin configuration file and a 'neutron net-show <netid>' of the external network.</div>
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<div>James<br>
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<div id="divRpF6883" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>From:</b> b t [905ben@gmail.com]<br>
<b>Sent:</b> Friday, October 03, 2014 8:52 PM<br>
<b>To:</b> openstack@lists.openstack.org<br>
<b>Subject:</b> [Openstack] why neutron router interfaces are done ?<br>
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<div dir="ltr">hi,
<div>VM works fine and can ping each other within the same project .</div>
<div>But VM can not ping gateway , not able to ping router external interface from external .<br>
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</div>
<div>here is the port-show and noticed ports are down .</div>
<div>any idea ? thanks !</div>
<div><br>
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<div>root@network:/etc# neutron port-show 7d2e7645-5a05-4eb6-ae9a-50ac627aac67</div>
<div>+-----------------------+------------------------------------------------------------------------------------+</div>
<div>| Field | Value |</div>
<div>+-----------------------+------------------------------------------------------------------------------------+</div>
<div>| admin_state_up | True |</div>
<div>| allowed_address_pairs | |</div>
<div>| binding:host_id | |</div>
<div>| binding:profile | {} |</div>
<div>| binding:vif_details | {} |</div>
<div>| binding:vif_type | unbound |</div>
<div>| binding:vnic_type | normal |</div>
<div>| device_id | 84fa4241-4c94-4260-880c-b6092c73c4c0 |</div>
<div>| device_owner | network:router_interface |</div>
<div>| extra_dhcp_opts | |</div>
<div>| fixed_ips | {"subnet_id": "b3ccfebb-7e08-46b3-9836-0af30242e139", "ip_address": "192.168.4.1"} |</div>
<div>| id | 7d2e7645-5a05-4eb6-ae9a-50ac627aac67 |</div>
<div>| mac_address | fa:16:3e:d5:41:d9 |</div>
<div>| name | |</div>
<div>| network_id | cc3ef6ae-7015-49cb-8b0d-49d7acd60601 |</div>
<div>| security_groups | |</div>
<div>| status | DOWN |</div>
<div>| tenant_id | e550fba3fa3743b0930c35d9b90f02e4 |</div>
<div>+-----------------------+------------------------------------------------------------------------------------+</div>
<div>root@network:/etc# neutron port-show 22495eeb-0856-4cd0-b8f5-55d9500b61f5</div>
<div>+-----------------------+------------------------------------------------------------------------------------+</div>
<div>| Field | Value |</div>
<div>+-----------------------+------------------------------------------------------------------------------------+</div>
<div>| admin_state_up | True |</div>
<div>| allowed_address_pairs | |</div>
<div>| binding:host_id | compute1 |</div>
<div>| binding:profile | {} |</div>
<div>| binding:vif_details | {"port_filter": true, "ovs_hybrid_plug": true} |</div>
<div>| binding:vif_type | ovs |</div>
<div>| binding:vnic_type | normal |</div>
<div>| device_id | c66f0ddf-3209-46c0-b21c-55cfee02d115 |</div>
<div>| device_owner | compute:None |</div>
<div>| extra_dhcp_opts | |</div>
<div>| fixed_ips | {"subnet_id": "b3ccfebb-7e08-46b3-9836-0af30242e139", "ip_address": "192.168.4.2"} |</div>
<div>| id | 22495eeb-0856-4cd0-b8f5-55d9500b61f5 |</div>
<div>| mac_address | fa:16:3e:73:36:97 |</div>
<div>| name | |</div>
<div>| network_id | cc3ef6ae-7015-49cb-8b0d-49d7acd60601 |</div>
<div>| security_groups | 0fff99c8-b889-4863-8bbb-57336e060f5e |</div>
<div>| status | ACTIVE |</div>
<div>| tenant_id | e550fba3fa3743b0930c35d9b90f02e4 |</div>
<div>+-----------------------+------------------------------------------------------------------------------------+</div>
<div>root@network:/etc# neutron port-show 18af3bf9-300d-477a-b38e-9cfd49bf152f</div>
<div>+-----------------------+------------------------------------------------------------------------------------+</div>
<div>| Field | Value |</div>
<div>+-----------------------+------------------------------------------------------------------------------------+</div>
<div>| admin_state_up | True |</div>
<div>| allowed_address_pairs | |</div>
<div>| binding:host_id | network |</div>
<div>| binding:profile | {} |</div>
<div>| binding:vif_details | {"port_filter": true, "ovs_hybrid_plug": true} |</div>
<div>| binding:vif_type | ovs |</div>
<div>| binding:vnic_type | normal |</div>
<div>| device_id | dhcp7b60c1d9-602e-5110-8c89-a9475b89732c-cc3ef6ae-7015-49cb-8b0d-49d7acd60601 |</div>
<div>| device_owner | network:dhcp |</div>
<div>| extra_dhcp_opts | |</div>
<div>| fixed_ips | {"subnet_id": "b3ccfebb-7e08-46b3-9836-0af30242e139", "ip_address": "192.168.4.3"} |</div>
<div>| id | 18af3bf9-300d-477a-b38e-9cfd49bf152f |</div>
<div>| mac_address | fa:16:3e:fa:f3:93 |</div>
<div>| name | |</div>
<div>| network_id | cc3ef6ae-7015-49cb-8b0d-49d7acd60601 |</div>
<div>| security_groups | |</div>
<div>| status | ACTIVE |</div>
<div>| tenant_id | e550fba3fa3743b0930c35d9b90f02e4 |</div>
<div>+-----------------------+------------------------------------------------------------------------------------+</div>
<div>root@network:/etc# </div>
<div>root@network:/etc# neutron port-show da78d28b-3d76-4b6c-a19d-755e6e4a4f4e</div>
<div>+-----------------------+------------------------------------------------------------------------------------+</div>
<div>| Field | Value |</div>
<div>+-----------------------+------------------------------------------------------------------------------------+</div>
<div>| admin_state_up | True |</div>
<div>| allowed_address_pairs | |</div>
<div>| binding:host_id | compute1 |</div>
<div>| binding:profile | {} |</div>
<div>| binding:vif_details | {"port_filter": true, "ovs_hybrid_plug": true} |</div>
<div>| binding:vif_type | ovs |</div>
<div>| binding:vnic_type | normal |</div>
<div>| device_id | e9c9fe44-8d55-4b92-bf50-d6d1f630fcae |</div>
<div>| device_owner | compute:None |</div>
<div>| extra_dhcp_opts | |</div>
<div>| fixed_ips | {"subnet_id": "b3ccfebb-7e08-46b3-9836-0af30242e139", "ip_address": "192.168.4.4"} |</div>
<div>| id | da78d28b-3d76-4b6c-a19d-755e6e4a4f4e |</div>
<div>| mac_address | fa:16:3e:92:a5:5c |</div>
<div>| name | |</div>
<div>| network_id | cc3ef6ae-7015-49cb-8b0d-49d7acd60601 |</div>
<div>| security_groups | 0fff99c8-b889-4863-8bbb-57336e060f5e |</div>
<div>| status | ACTIVE |</div>
<div>| tenant_id | e550fba3fa3743b0930c35d9b90f02e4 |</div>
<div>+-----------------------+------------------------------------------------------------------------------------+</div>
<div>root@network:/etc# </div>
<div>root@network:/etc# neutron port-show 971bae03-1fb9-47ec-a3fa-7a0b1803a197</div>
<div>+-----------------------+--------------------------------------------------------------------------------------+</div>
<div>| Field | Value |</div>
<div>+-----------------------+--------------------------------------------------------------------------------------+</div>
<div>| admin_state_up | True |</div>
<div>| allowed_address_pairs | |</div>
<div>| binding:host_id | |</div>
<div>| binding:profile | {} |</div>
<div>| binding:vif_details | {} |</div>
<div>| binding:vif_type | unbound |</div>
<div>| binding:vnic_type | normal |</div>
<div>| device_id | 84fa4241-4c94-4260-880c-b6092c73c4c0 |</div>
<div>| device_owner | network:router_gateway |</div>
<div>| extra_dhcp_opts | |</div>
<div>| fixed_ips | {"subnet_id": "f537da7b-9e71-4ff5-a0b5-3656c1754f26", "ip_address": "192.168.3.101"} |</div>
<div>| id | 971bae03-1fb9-47ec-a3fa-7a0b1803a197 |</div>
<div>| mac_address | fa:16:3e:d2:e0:b2 |</div>
<div>| name | |</div>
<div>| network_id | 55a98729-05dd-4b73-abe2-54c13effe81e |</div>
<div>| security_groups | |</div>
<div>| status | DOWN |</div>
<div>| tenant_id | |</div>
<div>+-----------------------+--------------------------------------------------------------------------------------+</div>
<div>root@network:/etc# </div>
<div>root@network:/etc# neutron port-show 84fa16ab-a507-4224-8932-f7046095a9f3</div>
<div>+-----------------------+--------------------------------------------------------------------------------------+</div>
<div>| Field | Value |</div>
<div>+-----------------------+--------------------------------------------------------------------------------------+</div>
<div>| admin_state_up | True |</div>
<div>| allowed_address_pairs | |</div>
<div>| binding:host_id | |</div>
<div>| binding:profile | {} |</div>
<div>| binding:vif_details | {} |</div>
<div>| binding:vif_type | unbound |</div>
<div>| binding:vnic_type | normal |</div>
<div>| device_id | 05ccb9d2-d905-4c1b-8a3a-d22e45445358 |</div>
<div>| device_owner | network:router_gateway |</div>
<div>| extra_dhcp_opts | |</div>
<div>| fixed_ips | {"subnet_id": "f537da7b-9e71-4ff5-a0b5-3656c1754f26", "ip_address": "192.168.3.102"} |</div>
<div>| id | 84fa16ab-a507-4224-8932-f7046095a9f3 |</div>
<div>| mac_address | fa:16:3e:85:04:3d |</div>
<div>| name | |</div>
<div>| network_id | 55a98729-05dd-4b73-abe2-54c13effe81e |</div>
<div>| security_groups | |</div>
<div>| status | DOWN |</div>
<div>| tenant_id | |</div>
<div>+-----------------------+--------------------------------------------------------------------------------------+</div>
<div>root@network:/etc# </div>
</div>
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