Hi All, I need help or any pointer to solve Openstack VM machine internet connectivity issue. I am successfully able to create VM machines on Openstack cloud. Facing following Openstack VM machine internet connectivity issues: 1) There is no internet connectivity from Openstack VM machine. 2) ping is successful till Openstack machine (192.168.0.166), but Gateway ip (192.168.0.1) not reachable from Openstack VM machine. 3) No website reachable from Openstack VM machine. Openstack is installed on Virtualbox VM machine (CentOS 8.2). Connectivity information: Internet<=====>Router(192.168.0.1)<=====>Oracle VM machine (CentOS 8.2; 192.168.0.166)<=====>Openstack VM Machine (192.168.0.174) Any help or trigger is much appreciated. ----------------------------------------------- Openstack VM Machine (192.168.0.174) Logs ----------------------------------------------- $ ip route default via 192.168.0.1 dev eth0 169.254.169.254 via 192.168.0.171 dev eth0 192.168.0.0/24 dev eth0 scope link src 192.168.0.174 $ ping 192.168.0.166 PING 192.168.0.166 (192.168.0.166): 56 data bytes 64 bytes from 192.168.0.166: seq=0 ttl=64 time=2.657 ms 64 bytes from 192.168.0.166: seq=1 ttl=64 time=1.196 ms 64 bytes from 192.168.0.166: seq=2 ttl=64 time=1.312 ms 64 bytes from 192.168.0.166: seq=3 ttl=64 time=0.875 ms 64 bytes from 192.168.0.166: seq=4 ttl=64 time=0.782 ms ^C --- 192.168.0.166 ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss round-trip min/avg/max = 0.782/1.364/2.657 ms $ ping 192.168.0.1 PING 192.168.0.1 (192.168.0.1): 56 data bytes ^C --- 192.168.0.1 ping statistics --- 3 packets transmitted, 0 packets received, 100% packet loss $ ping google.com ping: bad address 'google.com' $ $ sudo cat /etc/resolv.conf nameserver 192.168.0.1 nameserver 192.168.0.166 nameserver 8.8.8.8 $ $ ip route default via 192.168.0.1 dev eth0 169.254.169.254 via 192.168.0.171 dev eth0 192.168.0.0/24 dev eth0 scope link src 192.168.0.174 $ $ ifconfig eth0 Link encap:Ethernet HWaddr FA:16:3E:17:F2:F9 inet addr:192.168.0.174 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::f816:3eff:fe17:f2f9/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:572 errors:0 dropped:0 overruns:0 frame:0 TX packets:571 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:51697 (50.4 KiB) TX bytes:46506 (45.4 KiB) 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:35 errors:0 dropped:0 overruns:0 frame:0 TX packets:35 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:3764 (3.6 KiB) TX bytes:3764 (3.6 KiB) $ ----------------------------------------------------- Oracle VM machine (CentOS 8.2; 192.168.0.166) Logs ----------------------------------------------------- [root@openstack ~]# ovs-vsctl show 6718c4ce-6a58-463c-95e4-20a34edbe041 Manager "ptcp:6640:127.0.0.1" is_connected: true Bridge br-int fail_mode: secure datapath_type: system Port br-int Interface br-int type: internal Port "tap50a66e3f-00" Interface "tap50a66e3f-00" Port "patch-br-int-to-provnet-27804412-47c0-497d-8f2e-8c0bf8b04df1" Interface "patch-br-int-to-provnet-27804412-47c0-497d-8f2e-8c0bf8b04df1" type: patch options: {peer="patch-provnet-27804412-47c0-497d-8f2e-8c0bf8b04df1-to-br-int"} Port "tap6ea42aaf-80" Interface "tap6ea42aaf-80" Port "tap743cdf36-c8" Interface "tap743cdf36-c8" Port "tap2a93518d-90" Interface "tap2a93518d-90" Bridge br-ex fail_mode: standalone Port "patch-provnet-27804412-47c0-497d-8f2e-8c0bf8b04df1-to-br-int" Interface "patch-provnet-27804412-47c0-497d-8f2e-8c0bf8b04df1-to-br-int" type: patch options: {peer="patch-br-int-to-provnet-27804412-47c0-497d-8f2e-8c0bf8b04df1"} Port br-ex Interface br-ex type: internal Port "enp0s3" Interface "enp0s3" ovs_version: "2.12.0" [root@openstack ~]# ip a s enp0s3 2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master ovs-system state UP group default qlen 1000 link/ether 08:00:27:cd:fc:4f brd ff:ff:ff:ff:ff:ff [root@openstack ~]# ip a s br-ex 13: br-ex: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000 link/ether 08:00:27:cd:fc:4f brd ff:ff:ff:ff:ff:ff inet 192.168.0.166/24 brd 192.168.0.255 scope global br-ex valid_lft forever preferred_lft forever inet6 fe80::f057:6bff:fe69:1f47/64 scope link valid_lft forever preferred_lft forever [root@openstack ~]# [root@openstack ~]# cat /etc/resolv.conf # Generated by NetworkManager search example.com nameserver 192.168.0.1 nameserver 8.8.8.8 [root@openstack ~]# [root@openstack ~]# ip route default via 192.168.0.1 dev br-ex 169.254.0.0/16 dev br-ex scope link metric 1013 192.168.0.0/24 dev br-ex proto kernel scope link src 192.168.0.166 [root@openstack ~]# [root@openstack ~]# ifconfig br-ex: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.0.166 netmask 255.255.255.0 broadcast 192.168.0.255 inet6 fe80::f057:6bff:fe69:1f47 prefixlen 64 scopeid 0x20<link> ether 08:00:27:cd:fc:4f txqueuelen 1000 (Ethernet) RX packets 2781 bytes 505203 (493.3 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 1441 bytes 159474 (155.7 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 ether 08:00:27:cd:fc:4f txqueuelen 1000 (Ethernet) RX packets 94856 bytes 111711956 (106.5 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 33859 bytes 15114156 (14.4 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 1741807 bytes 441610166 (421.1 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 1741807 bytes 441610166 (421.1 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 tap2a93518d-90: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet6 fe80::681d:e6ff:fe1d:963f prefixlen 64 scopeid 0x20<link> ether 6a:1d:e6:1d:96:3f txqueuelen 1000 (Ethernet) RX packets 55 bytes 6540 (6.3 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 2950 bytes 916693 (895.2 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 tap50a66e3f-00: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1442 ether fe:16:3e:06:df:bf txqueuelen 1000 (Ethernet) RX packets 689 bytes 59074 (57.6 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 703 bytes 58933 (57.5 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 tap6ea42aaf-80: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet6 fe80::745b:6aff:fe1c:d270 prefixlen 64 scopeid 0x20<link> ether 76:5b:6a:1c:d2:70 txqueuelen 1000 (Ethernet) RX packets 63 bytes 7332 (7.1 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 126 bytes 10692 (10.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 tap743cdf36-c8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 ether fe:16:3e:17:f2:f9 txqueuelen 1000 (Ethernet) RX packets 1005 bytes 91770 (89.6 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 3555 bytes 902987 (881.8 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 [root@openstack ~]# Thanks & Regards