I apologize for asking what is probably a very basic question. I installed and created a self-hosted engine using cockpit on a server. I can reach the self-hosted engine from anywhere within my network. I then created a new VM selecting the default ovirtmgmt for the network. The VM does not seem to connect to the network via the bridge. I the used the console to manually configured the network card and I have connectivity between the VM, the engine and the server, but not beyond. What am I doing wrong ? Can someone point to a good documentation page on the subject ? Thanks in advance, Valerio _______________________________________________ Users mailing list -- users(a)ovirt.org To unsubscribe send an email to users-leave(a)ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/IFXOOU4DVR6...

That was my first thought, so I tried to set up manually the default route and netmask on the VM to match the engine's, but it didn't solve the problem. Another network question: I have a second network card on the host that is connected to an internal switch, how do I add a bridge for that card to be used by the VMs ? I created a secondary bridge on the host and then I tried to play with the network options on the oVirt portal, but I couldn't figure out to associate the new bridge with an new network. Before anyone thinks that the two issues are related, I did this after failing to solve the first issue. On 9/10/20 8:00 AM, Edward Berger wrote: It sounds like you don't have a proper default route on the VM or the netmask is set incorrectly, which can cause a bad route. Look at differences between the engine's network config (presuming it can reach outside the hypervisor host) and the VM's config. The VM should have the same subnet, netmask and default gateway as the engine VM, if its connected to ovirtmgmt. "ip a" "ip r" "traceroute" and "ping" are the usual commands to check network connections. On Thu, Sep 10, 2020 at 6:29 AM <valerio.luccio(a)nyu.edu&gt; wrote: > I apologize for asking what is probably a very basic question. > > I installed and created a self-hosted engine using cockpit on a server. I > can reach the self-hosted engine from anywhere within my network. > > I then created a new VM selecting the default ovirtmgmt for the network. > The VM does not seem to connect to the network via the bridge. I the used > the console to manually configured the network card and I have connectivity > between the VM, the engine and the server, but not beyond. What am I doing > wrong ? Can someone point to a good documentation page on the subject ? > > Thanks in advance, > Valerio > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/privacy-policy.html > <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ovirt.org_privac... > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ovirt.org_commun... > List Archives: > https://lists.ovirt.org/archives/list/users@ovirt.org/message/IFXOOU4DVR6... > <https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.ovirt.org_arch... > -- As a result of Coronavirus-related precautions, NYU and the Center for Brain Imaging operations will be managed remotely until further notice. All telephone calls and e-mail correspondence are being monitored remotely during our normal business hours of 9am-5pm, Monday through Friday. For MRI scanner-related emergency, please contact: Keith Sanzenbach at keith.sanzenbach(a)nyu.edu and/or Pablo Velasco at pablo.velasco(a)nyu.edu For computer/hardware/software emergency, please contact: Valerio Luccio at valerio.luccio(a)nyu.edu For TMS/EEG-related emergency, please contact: Chrysa Papadaniil at chrysa(a)nyu.edu For CBI-related administrative emergency, please contact: Jennifer Mangan at jennifer.mangan(a)nyu.edu Valerio Luccio (212) 998-8736 Center for Brain Imaging 4 Washington Place, Room 158 New York University New York, NY 10003 "In an open world, who needs windows or gates ?"

Understood, but how ? I'm using the oVirt Visualization Manager 4.4. I see a "Network" tab where I can create a new network and a new vNIC profile, but a) I don't see how I associate the new network with the bridge I created

and b) if I try to add this new network to my VM I get a message that says that the network does not exist on the host (which makes sense since the network I created is not connected to anything). I must say that all the examples I found online use a GUI that looks quite different from the one I have. Is there a separate GUI I should be running ? On 9/10/20 1:25 PM, Edward Berger wrote: The usual process to add another network bridge is to configure a new cluster logical network in the engine, then configure specific network interfaces on all hypervisors through the engine's "configure host networks". On Thu, Sep 10, 2020 at 11:43 AM Valerio Luccio <valerio.luccio(a)nyu.edu&gt; wrote: > That was my first thought, so I tried to set up manually the default > route and netmask on the VM to match the engine's, but it didn't solve the > problem. > > Another network question: I have a second network card on the host that > is connected to an internal switch, how do I add a bridge for that card to > be used by the VMs ? I created a secondary bridge on the host and then I > tried to play with the network options on the oVirt portal, but I couldn't > figure out to associate the new bridge with an new network. Before anyone > thinks that the two issues are related, I did this after failing to solve > the first issue. > > On 9/10/20 8:00 AM, Edward Berger wrote: > > It sounds like you don't have a proper default route on the VM or the > netmask is set incorrectly, > which can cause a bad route. > > Look at differences between the engine's network config (presuming it can > reach outside the hypervisor host) > and the VM's config. The VM should have the same subnet, netmask and > default gateway as the engine VM, > if its connected to ovirtmgmt. > > "ip a" "ip r" "traceroute" and "ping" are the usual commands to check > network connections. > > > > > On Thu, Sep 10, 2020 at 6:29 AM <valerio.luccio(a)nyu.edu&gt; wrote: > >> I apologize for asking what is probably a very basic question. >> >> I installed and created a self-hosted engine using cockpit on a server. >> I can reach the self-hosted engine from anywhere within my network. >> >> I then created a new VM selecting the default ovirtmgmt for the network. >> The VM does not seem to connect to the network via the bridge. I the used >> the console to manually configured the network card and I have connectivity >> between the VM, the engine and the server, but not beyond. What am I doing >> wrong ? Can someone point to a good documentation page on the subject ? >> >> Thanks in advance, >> Valerio >> _______________________________________________ >> Users mailing list -- users(a)ovirt.org >> To unsubscribe send an email to users-leave(a)ovirt.org >> Privacy Statement: https://www.ovirt.org/privacy-policy.html >> <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ovirt.org_privac... >> oVirt Code of Conduct: >> https://www.ovirt.org/community/about/community-guidelines/ >> <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ovirt.org_commun... >> List Archives: >> https://lists.ovirt.org/archives/list/users@ovirt.org/message/IFXOOU4DVR6... >> <https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.ovirt.org_arch... >> > > -- > As a result of Coronavirus-related precautions, NYU and the Center for > Brain Imaging operations will be managed remotely until further notice. > All telephone calls and e-mail correspondence are being monitored > remotely during our normal business hours of 9am-5pm, Monday through Friday. > > For MRI scanner-related emergency, please contact: Keith Sanzenbach at > keith.sanzenbach(a)nyu.edu and/or Pablo Velasco at pablo.velasco(a)nyu.edu > For computer/hardware/software emergency, please contact: Valerio Luccio > at valerio.luccio(a)nyu.edu > For TMS/EEG-related emergency, please contact: Chrysa Papadaniil at > chrysa(a)nyu.edu > For CBI-related administrative emergency, please contact: Jennifer Mangan > at jennifer.mangan(a)nyu.edu > > Valerio Luccio (212) 998-8736 > Center for Brain Imaging 4 Washington Place, Room 158 > New York University New York, NY 10003 > > "In an open world, who needs windows or gates ?" > > -- As a result of Coronavirus-related precautions, NYU and the Center for Brain Imaging operations will be managed remotely until further notice. All telephone calls and e-mail correspondence are being monitored remotely during our normal business hours of 9am-5pm, Monday through Friday. For MRI scanner-related emergency, please contact: Keith Sanzenbach at keith.sanzenbach(a)nyu.edu and/or Pablo Velasco at pablo.velasco(a)nyu.edu For computer/hardware/software emergency, please contact: Valerio Luccio at valerio.luccio(a)nyu.edu For TMS/EEG-related emergency, please contact: Chrysa Papadaniil at chrysa(a)nyu.edu For CBI-related administrative emergency, please contact: Jennifer Mangan at jennifer.mangan(a)nyu.edu Valerio Luccio (212) 998-8736 Center for Brain Imaging 4 Washington Place, Room 158 New York University New York, NY 10003 "In an open world, who needs windows or gates ?" _______________________________________________ Users mailing list -- users(a)ovirt.org To unsubscribe send an email to users-leave(a)ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives:

Thanks to all that gave me hints/suggestions, especially to Edward that pointed me to the right setup page. I was able to set up correctly my internal switch network, but I'm still having issues with the virtual network that connects to the university backbone. The route on the VM is setup just like on the host and the engine. I also tested traceroute and found out something puzzling: 1. traceroute on the host and the engine for any node on the university network returns the answer in milliseconds. 2. traceroute on the VM for a node on my internal switch returns the answer in milliseconds with the flag. 3. traceroute on the VM for the host or the engine returns answer after more than 10 seconds with the flag !X 4. traceroute on the VM for other hosts on the network returns the flag !H (host not reachable). According to the traceroute man pages the !X flag indicates "communication administratively prohibited". I temporarily turned off the firewall on the host and the engine and that removed the !X flag from 3, but did not speed it up and did not solve 4. Anyone have any clue what I should try next ? Thanks in advance, -- As a result of Coronavirus-related precautions, NYU and the Center for Brain Imaging operations will be managed remotely until further notice. All telephone calls and e-mail correspondence are being monitored remotely during our normal business hours of 9am-5pm, Monday through Friday. For MRI scanner-related emergency, please contact: Keith Sanzenbach at keith.sanzenbach(a)nyu.edu and/or Pablo Velasco at pablo.velasco(a)nyu.edu For computer/hardware/software emergency, please contact: Valerio Luccio at valerio.luccio(a)nyu.edu For TMS/EEG-related emergency, please contact: Chrysa Papadaniil at chrysa(a)nyu.edu For CBI-related administrative emergency, please contact: Jennifer Mangan at jennifer.mangan(a)nyu.edu Valerio Luccio (212) 998-8736 Center for Brain Imaging 4 Washington Place, Room 158 New York University New York, NY 10003 "In an open world, who needs windows or gates ?" _______________________________________________ Users mailing list -- users(a)ovirt.org To unsubscribe send an email to users-leave(a)ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives:

It turns out that for security reasons the university sets a default cap of two MAC addresses per port, so host and engine maxed it out. I requested that they increase the cap on this port and now things work as expected.

-- As a result of Coronavirus-related precautions, NYU and the Center for Brain Imaging operations will be managed remotely until further notice. All telephone calls and e-mail correspondence are being monitored remotely during our normal business hours of 9am-5pm, Monday through Friday. For MRI scanner-related emergency, please contact: Keith Sanzenbach at keith.sanzenbach(a)nyu.edu and/or Pablo Velasco at pablo.velasco(a)nyu.edu For computer/hardware/software emergency, please contact: Valerio Luccio at valerio.luccio(a)nyu.edu For TMS/EEG-related emergency, please contact: Chrysa Papadaniil at chrysa(a)nyu.edu For CBI-related administrative emergency, please contact: Jennifer Mangan at jennifer.mangan(a)nyu.edu Valerio Luccio (212) 998-8736 Center for Brain Imaging 4 Washington Place, Room 158 New York University New York, NY 10003 "In an open world, who needs windows or gates ?" _______________________________________________ Users mailing list -- users(a)ovirt.org To unsubscribe send an email to users-leave(a)ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/A6DQYT7DGUN...