Unable to ping router

[Venkata Seshadri]

I am unable to Ping my Router and when i go to dashboard and see my external network state is DOWN. I followed all the steps in open-stack documentation .i am Using CentOS 7 . what is the issue??

[yalei wang (yalei-wang)]

please give more info？

[Eugene Nikanorov (enikanorov)]

You need to provide more information in order for this bug to be actionable.
Neutron version, output of
 neutron net-show net-id
 neutron router-show router-id

Also, debug-level logs from neutron-server and l3 agent

[Venkata Seshadri (seshu9398)]

I have configured my External Network as:

[Venkata Seshadri (seshu9398)]

neutron subnet-create ext-net --name ext-subnet \
  --allocation-pool start=202.177.169.242,end=202.177.169.254 \
  --disable-dhcp --gateway 202.177.169.241 202.177.169.240/27

Internal Network as:
neutron subnet-create demo-net --name demo-subnet \
  --gateway 192.168.1.1 192.168.1.0/27

But after this iam unable to Ping the router IP , And the status of my external Network is Down in Router,
How to make the external network Active.

PLEASE HELP IN THIS

[Venkata Seshadri (seshu9398)]

neutron net-list
+--------------------------------------+----------+----------------------------- ----------------------------+
| id | name | subnets |
+--------------------------------------+----------+----------------------------- ----------------------------+
| 2ed12701-278d-4dd3-b690-3a1747744889 | ext-net | 3d671c32-5e85-49a2-bc51-9dd9 1cc90c26 202.177.169.224/27 |
| 5749cdd1-5321-4d1d-ab06-2fca37d331eb | demo-net | 9528bc23-4076-4b18-b270-5dc7 c0356b40 192.168.1.0/24 |
+--------------------------------------+----------+----------------------------- ----------------------------+
[root@controller ~]# neutron net-show 2ed12701-278d-4dd3-b690-3a1747744889
+---------------------------+--------------------------------------+
| Field | Value |
+---------------------------+--------------------------------------+
| admin_state_up | True |
| id | 2ed12701-278d-4dd3-b690-3a1747744889 |
| name | ext-net |
| provider:network_type | flat |
| provider:physical_network | external |
| provider:segmentation_id | |
| router:external | True |
| shared | True |
| status | ACTIVE |
| subnets | 3d671c32-5e85-49a2-bc51-9dd91cc90c26 |
| tenant_id | 1e944351972f4e4895f7bae2a3289b97 |
+---------------------------+--------------------------------------+
[root@controller ~]# neutron net-show 5749cdd1-5321-4d1d-ab06-2fca37d331eb
+---------------------------+--------------------------------------+
| Field | Value |
+---------------------------+--------------------------------------+
| admin_state_up | True |
| id | 5749cdd1-5321-4d1d-ab06-2fca37d331eb |
| name | demo-net |
| provider:network_type | gre |
| provider:physical_network | |
| provider:segmentation_id | 1 |
| router:external | False |
| shared | False |
| status | ACTIVE |
| subnets | 9528bc23-4076-4b18-b270-5dc7c0356b40 |
| tenant_id | 1e944351972f4e4895f7bae2a3289b97 |
+---------------------------+--------------------------------------+

[Venkata Seshadri (seshu9398)]

Router:
neutron router-list
+--------------------------------------+-------------+-----------------------+-------------+-------+
| id | name | external_gateway_info | distributed | ha |
+--------------------------------------+-------------+-----------------------+-------------+-------+
| 4bad55bc-b183-410b-a44c-a03b44b8edbe | demo-router | null | False | False |
+--------------------------------------+-------------+-----------------------+-------------+-------+
[root@controller ~]# neutron router-show demo-router
+-----------------------+--------------------------------------+
| Field | Value |
+-----------------------+--------------------------------------+
| admin_state_up | True |
| distributed | False |
| external_gateway_info | |
| ha | False |
| id | 4bad55bc-b183-410b-a44c-a03b44b8edbe |
| name | demo-router |
| routes | |
| status | ACTIVE |
| tenant_id | 1e944351972f4e4895f7bae2a3289b97 |
+-----------------------+--------------------------------------+

[Venkata Seshadri (seshu9398)]

i am unable to ping my router,external network is Status Down in Router.

[LuckyT (luckyhumain)]

Even i'm facing the same issue

[yong sheng gong (gongysh)]

to troubleshooting:
1. get the l3 agent hosting the router
neutron l3-agent-list-hosting-router <rtid>
2. go to the l3 agent, check the route ip
ip netns exec qrouter-<rtid> ip a

[Venkata Seshadri (seshu9398)]

Dude The external network of the router is down.

[senthilmageswaran (senthilmageswaran-muthusamy)]

hi Venkata seshadri,

from the CLI output, the external network status is shown as ACTIVE

Are you trying to ping your external network ip from your instance?
if so, did you run the following commands in controller node,

nova secgroup-add-rule default icmp -1 -1 0.0.0.0/0
nova secgroup-add-rule default tcp 22 22 0.0.0.0/0
neutron floatingip-create ext-net
nova floating-ip-associate <InstanceName> <floating_ip>

[Venkata Seshadri (seshu9398)]

No actually iam trying to ping router from my contoller which was given as a part of verification process in openstack document.

[Launchpad Janitor (janitor)]

[Expired for neutron because there has been no activity for 60 days.]