Openstack VMmachine internet connectivity issue
Bhartendu
bhartendu at gmail.com
Sat Aug 8 07:00:51 UTC 2020
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 at 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 at 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 at 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 at openstack ~]#
[root at openstack ~]# cat /etc/resolv.conf
# Generated by NetworkManager
search example.com
nameserver 192.168.0.1
nameserver 8.8.8.8
[root at openstack ~]#
[root at 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 at openstack ~]#
[root at 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 at openstack ~]#
Thanks & Regards
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