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Instance not reachable on public network

Hello There,

I am working on Neuton release of open stack. I am facing problem while accessing my instance from Public network. Since I am new to open stack, I am not sure what I am missing here. Pasting below some information points.

  1. I am having separate node for Control, Network and compute having cent OS 7.
  2. The floating IP I assigned to instance Cirros i.e. 172.18.20.184(public IP) is pingable from Network node, however not pinging from other nodes.
  3. The physical ethernet port of network i.e. "eno16777984" is already added to br-ex.
  4. I am able to ping router name space (qr-xxxx)(public IP) from instance and vice versa.
  5. Only problem is, how should I access my instance from outside of network node.

output of ovs-vsctl show command from network node:

[root@networknode neutron]# ovs-vsctl show 57ad0003-a110-4064-8158-f0f962a3cb2a Manager "ptcp:6640:127.0.0.1" is_connected: true Bridge br-ex Controller "tcp:127.0.0.1:6633" is_connected: true fail_mode: secure Port "eno16777984" Interface "eno16777984" Port br-ex Interface br-ex type: internal Port phy-br-ex Interface phy-br-ex type: patch options: {peer=int-br-ex} Bridge br-int Controller "tcp:127.0.0.1:6633" is_connected: true fail_mode: secure Port "qr-b69d96ae-a6" tag: 1 Interface "qr-b69d96ae-a6" type: internal Port "qg-3ac492ee-e6" tag: 2 Interface "qg-3ac492ee-e6" type: internal Port int-br-ex Interface int-br-ex type: patch options: {peer=phy-br-ex} Port patch-tun Interface patch-tun type: patch options: {peer=patch-int} Port "tap0c2eba90-75" tag: 1 Interface "tap0c2eba90-75" type: internal Port br-int Interface br-int type: internal Bridge br-tun Controller "tcp:127.0.0.1:6633" is_connected: true fail_mode: secure Port br-tun Interface br-tun type: internal Port patch-int Interface patch-int type: patch options: {peer=patch-tun} Port "vxlan-c0a87b03" Interface "vxlan-c0a87b03" type: vxlan options: {df_default="true", in_key=flow, local_ip="192.168.123.2", out_key=flow, remote_ip="192.168.123.3"} ovs_version: "2.5.0"

[root@networknode neutron]#

output of ip addr show command from network node:


[root@networknode neutron]# ip addr show 1: lo: <loopback,up,lower_up> mtu 65536 qdisc noqueue state UNKNOWN qlen 1 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: eno16777984: <broadcast,multicast,up,lower_up> mtu 1500 qdisc mq master ovs-system state UP qlen 1000 link/ether 00:50:56:8f:59:ad brd ff:ff:ff:ff:ff:ff inet6 fe80::250:56ff:fe8f:59ad/64 scope link valid_lft forever preferred_lft forever 3: eno33557248: <broadcast,multicast,up,lower_up> mtu 1500 qdisc mq state UP qlen 1000 link/ether 00:50:56:8f:68:64 brd ff:ff:ff:ff:ff:ff inet 192.168.123.2/24 brd 192.168.123.255 scope global eno33557248 valid_lft forever preferred_lft forever inet6 fe80::250:56ff:fe8f:6864/64 scope link valid_lft forever preferred_lft forever 4: ovs-system: <broadcast,multicast> mtu 1500 qdisc noop state DOWN qlen 1000 link/ether da:7f:2a:27:5a:95 brd ff:ff:ff:ff:ff:ff 5: br-int: <broadcast,multicast> mtu 1500 qdisc noop state DOWN qlen 1000 link/ether b6:d9:88:98:9c:4b brd ff:ff:ff:ff:ff:ff 6: vxlan_sys_4789: <broadcast,multicast,up,lower_up> mtu 65470 qdisc noqueue master ovs-system state UNKNOWN qlen 1000 link/ether 06:f5:85:48:0b:c5 brd ff:ff:ff:ff:ff:ff inet6 fe80::4f5:85ff:fe48:bc5/64 scope link valid_lft forever preferred_lft forever 7: br-tun: <broadcast,multicast> mtu 1500 qdisc noop state DOWN qlen 1000 link/ether 0e:7d:20:fe:6f:4d brd ff:ff:ff:ff:ff:ff 8: br-ex: <broadcast,multicast,up,lower_up> mtu 1500 qdisc noqueue state UNKNOWN qlen 1000 link/ether 00:50:56:8f:59:ad brd ff:ff:ff:ff:ff:ff inet 172.18.20.165/24 brd 172.18.20.255 scope global br-ex valid_lft forever preferred_lft forever inet6 fe80::250:56ff:fe8f:59ad/64 scope link valid_lft forever preferred_lft forever

[root@networknode neutron]#

Any help here would be appreciated