Thanks. I tried this on the host :
sudo ifconfig br-ex 172.24.4.1 netmask 255.255.255.0 up sudo iptables -t nat -A POSTROUTING -s 172.24.4.254/24 -o wlo1 -j MASQUERADE
I then connect to the VM through ssh and still no internet: sudo apt-get update returns : W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal/InRelease%C2%A0 Temporary failure resolving 'archive.ubuntu.com'
Any other suggestion please ?
On Thursday, January 20, 2022, 11:46:12 AM GMT+1, Slawek Kaplonski skaplons@redhat.com wrote:
Hi,
In devstack, we are configureing MASQUARADE for the FLOATINT_RANGE to be able to go outside the devstack node. See https://github.com/openstack/devstack/ blob/24b65adc9cedff9c7a8ab412fb39613ef5d4a627/lib/neutron-legacy#L704 for the details. Maybe You need to configure something like that on Your setup?
On środa, 19 stycznia 2022 23:29:35 CET Celinio Fernandes wrote:
Hi,still trying to reach the external network from inside the VM.I have not set up any DNS server on any of the interfaces (shared and public).Do i need to add one ?
On Sunday, January 16, 2022, 02:12:00 PM GMT+1, Celinio Fernandes cel975@yahoo.com wrote:
Hi, I can ssh into the instance now but I noticed the VM does not have any external network access (internet). Before I dig any deeper into that problem, does anyone know what configuration i need to set up for that ? I already added 2 new security rules to make sure I can access HTTP and HTTPS ports (80 and 443), in vain : Ingress IPv4 TCP 80 (HTTP) 0.0.0.0/0 Ingress IPv4 TCP 443 (HTTPS) 0.0.0.0/0
Thanks.
On Saturday, January 15, 2022, 12:29:40 AM GMT+1, Celinio Fernandes cel975@yahoo.com wrote:
Thanks very much for your help. Before you replied, I tried what you wrote but on the wrong interfaces : enp0s3 and virbr0. I had no idea I needed to add the IP address from the public network's
subnet
on the br-ex interface. So to ping/ssh the floating IP this is what I did : ip link set dev br-ex up ip link set dev br-ex state up sudo ip addr add 172.24.4.254/24 dev br-ex And then I can finally ping the floating IP : ping 172.24.4.133 And I can also ssh into the VM : ssh cirros@172.24.4.133
Thanks again :)
On Sunday, January 9, 2022, 08:21:18 PM GMT+1, Slawek Kaplonski skaplons@redhat.com wrote:
Hi,
On niedziela, 9 stycznia 2022 09:17:18 CET Celinio Fernandes wrote:
Hi, I am running Ubuntu Server 20.04 LTS on Virtualbox. I installed OpenStack (Xena release) through Devstack. Here is the content of my /opt/stack/devstack/local.conf file : [[local|localrc]] ADMIN_PASSWORD=secret DATABASE_PASSWORD=$ADMIN_PASSWORD RABBIT_PASSWORD=$ADMIN_PASSWORD SERVICE_PASSWORD=$ADMIN_PASSWORD HOST_IP=10.0.2.15
I created an instance through Horizon. The security group contains the 2 rules needed (one to be able to ping and one to be able to ssh the instance). I also allocated and associated a floating IP address. And a ssh key pair.
Here is the configuration : openstack server list ---------------------------------+--------------------------+---------+
| ID | Name | Status | Networks | Image | Flavor |
---------------------------------+--------------------------+---------+
| f5f0fdd5-298b-4fa3-9ee9-e6e4288f4327 | InstanceJanvier | ACTIVE | | shared=172.24.4.133, 192.168.233.165 | cirros-0.5.2-x86_64-disk |
m1.nano
------------------------------------------------------+
openstack network list : ------------------------------------------------------+
| ID | Name | Subnets |
------------------------------------------------------+
| 96a04799-7fc7-4525-b05c-ad57261aed38 | public | | 07ce42db-6f3f-4135-ace7-2fc104ea62a0, | 6dba13fc-b10c-48b1-b1b4-e1f1afe25b53 | | | c42638dc-fa56-4644-ad34-295fce4811d2 | shared | | | a4e2d8cc-02b2-42e2-a525-e0eebbb08980
| | | ffb8a527-266e-4e96-ad60-f7e9aba8f0c1 | private | | | 42e36677-cf3c-4df4-88a1-8cf79b9d6060, | e507e6dd-132a-4249-96b1-83761562dd73
------------------------------------------------------+
openstack router list : +--------------------------------------+----------------+--------+------
| ID | Name | Status | State | Project |
+--------------------------------------+----------------+--------+------
| b9a15051-a532-4c93-95ad-53c057720c62 | Virtual_router | ACTIVE | UP | | 6556c02dd88f4c45b535c2dbb8ba1a04 |
+--------------------------------------+----------------+--------+------
I cannot ping/ssh neither the fixed IP address or the floating IP address : ping -c 3 172.24.4.133 PING 172.24.4.133 (172.24.4.133) 56(84) bytes of data. --- 172.24.4.133 ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 2035ms
ping -c 3 192.168.233.165 PING 192.168.233.165 (192.168.233.165) 56(84) bytes of data. --- 192.168.233.165 ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 2035ms
Maybe that has something to do with the network namespaces configuration on Ubuntu. Does anyone know what could go wrong or what is missing ? Thanks for helping.
If You are trying to ping Floating IP directly from the host where devstack is installed (Virtualbox VM in Your case IIUC) then You should first have those floating IP addresses somehow reachable on the host, otherwise traffic is probably going through default gateway so is going outside the VM. If You are using ML2/OVN (default in Devstack) or ML2/OVS You probably have in the openvswitch bridge called br-ex which is used to send external network traffic from the OpenStack networks in Devstack. In such case You can e.g. add some IP address from the public network's subnet on the br-ex interface, like 192.168.233.254/24 - that will tell Your OS to reach that subnet through br- ex, so traffic will be able to go "into" the OVS managed by Neutron.