<div dir="ltr"><font face="verdana, sans-serif">Hi All,<br><br></font><p class="MsoNormal" style="margin:0in 0in 0.0001pt"><font face="verdana, sans-serif">I need help or any pointer to solve Openstack VM
machine internet connectivity issue. </font>I am successfully able to create VM machines on Openstack cloud. </p>
<p class="MsoNormal" style="margin:0in 0in 0.0001pt"><font face="verdana, sans-serif"> </font></p>
<p class="MsoNormal" style="margin:0in 0in 0.0001pt"><font face="verdana, sans-serif">Facing following Openstack VM machine internet connectivity
issues: </font></p>
<p class="MsoNormal" style="margin:0in 0in 0.0001pt"><font face="verdana, sans-serif"> </font></p>
<p class="MsoNormal" style="margin:0in 0in 0.0001pt"><font face="verdana, sans-serif">1) There is no internet connectivity from Openstack VM
machine.</font></p>
<p class="MsoNormal" style="margin:0in 0in 0.0001pt"><font face="verdana, sans-serif">2) ping is successful till Openstack machine
(192.168.0.166), but Gateway ip (192.168.0.1) not reachable from Openstack VM
machine.</font></p>
<p class="MsoNormal" style="margin:0in 0in 0.0001pt"><font face="verdana, sans-serif">3) No website reachable from Openstack VM machine.</font></p><font face="verdana, sans-serif"><br>Openstack is installed on Virtualbox VM machine (CentOS 8.2). <br><br>Connectivity information:<br>Internet<=====>Router(192.168.0.1)<=====>Oracle VM machine (CentOS 8.2; 192.168.0.166)<=====>Openstack VM Machine (192.168.0.174)<br><br>Any help or trigger is much appreciated.<br><br>-----------------------------------------------<br>Openstack VM Machine (192.168.0.174) Logs<br>-----------------------------------------------<br>$ ip route<br>default via 192.168.0.1 dev eth0<br>169.254.169.254 via 192.168.0.171 dev eth0<br><a href="http://192.168.0.0/24">192.168.0.0/24</a> dev eth0 scope link src 192.168.0.174<br>$ ping 192.168.0.166<br>PING 192.168.0.166 (192.168.0.166): 56 data bytes<br>64 bytes from <a href="http://192.168.0.166">192.168.0.166</a>: seq=0 ttl=64 time=2.657 ms<br>64 bytes from <a href="http://192.168.0.166">192.168.0.166</a>: seq=1 ttl=64 time=1.196 ms<br>64 bytes from <a href="http://192.168.0.166">192.168.0.166</a>: seq=2 ttl=64 time=1.312 ms<br>64 bytes from <a href="http://192.168.0.166">192.168.0.166</a>: seq=3 ttl=64 time=0.875 ms<br>64 bytes from <a href="http://192.168.0.166">192.168.0.166</a>: seq=4 ttl=64 time=0.782 ms<br>^C<br>--- 192.168.0.166 ping statistics ---<br>5 packets transmitted, 5 packets received, 0% packet loss<br>round-trip min/avg/max = 0.782/1.364/2.657 ms<br>$ ping 192.168.0.1<br>PING 192.168.0.1 (192.168.0.1): 56 data bytes<br>^C<br>--- 192.168.0.1 ping statistics ---<br>3 packets transmitted, 0 packets received, 100% packet loss<br>$ ping <a href="http://google.com">google.com</a><br>ping: bad address '<a href="http://google.com">google.com</a>'<br>$<br>$ sudo cat /etc/resolv.conf<br>nameserver 192.168.0.1<br>nameserver 192.168.0.166<br>nameserver 8.8.8.8<br>$<br>$ ip route<br>default via 192.168.0.1 dev eth0<br>169.254.169.254 via 192.168.0.171 dev eth0<br><a href="http://192.168.0.0/24">192.168.0.0/24</a> dev eth0 scope link src 192.168.0.174<br>$<br>$ ifconfig<br>eth0 Link encap:Ethernet HWaddr FA:16:3E:17:F2:F9<br> inet addr:192.168.0.174 Bcast:192.168.0.255 Mask:255.255.255.0<br> inet6 addr: fe80::f816:3eff:fe17:f2f9/64 Scope:Link<br> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1<br> RX packets:572 errors:0 dropped:0 overruns:0 frame:0<br> TX packets:571 errors:0 dropped:0 overruns:0 carrier:0<br> collisions:0 txqueuelen:1000<br> RX bytes:51697 (50.4 KiB) TX bytes:46506 (45.4 KiB)<br><br>lo Link encap:Local Loopback<br> inet addr:127.0.0.1 Mask:255.0.0.0<br> inet6 addr: ::1/128 Scope:Host<br> UP LOOPBACK RUNNING MTU:65536 Metric:1<br> RX packets:35 errors:0 dropped:0 overruns:0 frame:0<br> TX packets:35 errors:0 dropped:0 overruns:0 carrier:0<br> collisions:0 txqueuelen:1000<br> RX bytes:3764 (3.6 KiB) TX bytes:3764 (3.6 KiB)<br><br>$<br><br>-----------------------------------------------------<br>Oracle VM machine (CentOS 8.2; 192.168.0.166) Logs<br>-----------------------------------------------------<br><br>[root@openstack ~]# ovs-vsctl show<br>6718c4ce-6a58-463c-95e4-20a34edbe041<br> Manager "ptcp:6640:127.0.0.1"<br> is_connected: true<br> Bridge br-int<br> fail_mode: secure<br> datapath_type: system<br> Port br-int<br> Interface br-int<br> type: internal<br> Port "tap50a66e3f-00"<br> Interface "tap50a66e3f-00"<br> Port "patch-br-int-to-provnet-27804412-47c0-497d-8f2e-8c0bf8b04df1"<br> Interface "patch-br-int-to-provnet-27804412-47c0-497d-8f2e-8c0bf8b04df1"<br> type: patch<br> options: {peer="patch-provnet-27804412-47c0-497d-8f2e-8c0bf8b04df1-to-br-int"}<br> Port "tap6ea42aaf-80"<br> Interface "tap6ea42aaf-80"<br> Port "tap743cdf36-c8"<br> Interface "tap743cdf36-c8"<br> Port "tap2a93518d-90"<br> Interface "tap2a93518d-90"<br> Bridge br-ex<br> fail_mode: standalone<br> Port "patch-provnet-27804412-47c0-497d-8f2e-8c0bf8b04df1-to-br-int"<br> Interface "patch-provnet-27804412-47c0-497d-8f2e-8c0bf8b04df1-to-br-int"<br> type: patch<br> options: {peer="patch-br-int-to-provnet-27804412-47c0-497d-8f2e-8c0bf8b04df1"}<br> Port br-ex<br> Interface br-ex<br> type: internal<br> Port "enp0s3"<br> Interface "enp0s3"<br> ovs_version: "2.12.0"<br>[root@openstack ~]# ip a s enp0s3<br>2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master ovs-system state UP group default qlen 1000<br> link/ether 08:00:27:cd:fc:4f brd ff:ff:ff:ff:ff:ff<br>[root@openstack ~]# ip a s br-ex<br>13: br-ex: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000<br> link/ether 08:00:27:cd:fc:4f brd ff:ff:ff:ff:ff:ff<br> inet <a href="http://192.168.0.166/24">192.168.0.166/24</a> brd 192.168.0.255 scope global br-ex<br> valid_lft forever preferred_lft forever<br> inet6 fe80::f057:6bff:fe69:1f47/64 scope link<br> valid_lft forever preferred_lft forever<br>[root@openstack ~]#<br>[root@openstack ~]# cat /etc/resolv.conf<br># Generated by NetworkManager<br>search <a href="http://example.com">example.com</a><br>nameserver 192.168.0.1<br>nameserver 8.8.8.8<br>[root@openstack ~]#<br>[root@openstack ~]# ip route<br>default via 192.168.0.1 dev br-ex<br><a href="http://169.254.0.0/16">169.254.0.0/16</a> dev br-ex scope link metric 1013<br><a href="http://192.168.0.0/24">192.168.0.0/24</a> dev br-ex proto kernel scope link src 192.168.0.166<br>[root@openstack ~]#<br>[root@openstack ~]# ifconfig<br>br-ex: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<br> inet 192.168.0.166 netmask 255.255.255.0 broadcast 192.168.0.255<br> inet6 fe80::f057:6bff:fe69:1f47 prefixlen 64 scopeid 0x20<link><br> ether 08:00:27:cd:fc:4f txqueuelen 1000 (Ethernet)<br> RX packets 2781 bytes 505203 (493.3 KiB)<br> RX errors 0 dropped 0 overruns 0 frame 0<br> TX packets 1441 bytes 159474 (155.7 KiB)<br> TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0<br><br>enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<br> ether 08:00:27:cd:fc:4f txqueuelen 1000 (Ethernet)<br> RX packets 94856 bytes 111711956 (106.5 MiB)<br> RX errors 0 dropped 0 overruns 0 frame 0<br> TX packets 33859 bytes 15114156 (14.4 MiB)<br> TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0<br><br>lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536<br> inet 127.0.0.1 netmask 255.0.0.0<br> inet6 ::1 prefixlen 128 scopeid 0x10<host><br> loop txqueuelen 1000 (Local Loopback)<br> RX packets 1741807 bytes 441610166 (421.1 MiB)<br> RX errors 0 dropped 0 overruns 0 frame 0<br> TX packets 1741807 bytes 441610166 (421.1 MiB)<br> TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0<br><br>tap2a93518d-90: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<br> inet6 fe80::681d:e6ff:fe1d:963f prefixlen 64 scopeid 0x20<link><br> ether 6a:1d:e6:1d:96:3f txqueuelen 1000 (Ethernet)<br> RX packets 55 bytes 6540 (6.3 KiB)<br> RX errors 0 dropped 0 overruns 0 frame 0<br> TX packets 2950 bytes 916693 (895.2 KiB)<br> TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0<br><br>tap50a66e3f-00: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1442<br> ether fe:16:3e:06:df:bf txqueuelen 1000 (Ethernet)<br> RX packets 689 bytes 59074 (57.6 KiB)<br> RX errors 0 dropped 0 overruns 0 frame 0<br> TX packets 703 bytes 58933 (57.5 KiB)<br> TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0<br><br>tap6ea42aaf-80: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<br> inet6 fe80::745b:6aff:fe1c:d270 prefixlen 64 scopeid 0x20<link><br> ether 76:5b:6a:1c:d2:70 txqueuelen 1000 (Ethernet)<br> RX packets 63 bytes 7332 (7.1 KiB)<br> RX errors 0 dropped 0 overruns 0 frame 0<br> TX packets 126 bytes 10692 (10.4 KiB)<br> TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0<br><br>tap743cdf36-c8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<br> ether fe:16:3e:17:f2:f9 txqueuelen 1000 (Ethernet)<br> RX packets 1005 bytes 91770 (89.6 KiB)<br> RX errors 0 dropped 0 overruns 0 frame 0<br> TX packets 3555 bytes 902987 (881.8 KiB)<br> TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0<br><br>[root@openstack ~]#<br><br>Thanks & Regards<br><br><br><br><br></font><br></div>