Guest DHCP issue

[Adam Witwicki]

Hello

I have recently added 2 new hosts to our cluster, but ran into an issue where guests do not receive a DHCP lease from the virtual router.
If I set the interface as static I can ping the router and all networking is fine. I'm sure must have missed a configuration step.

Any ideas?


CS version 4.11.0.0
libvirtd (libvirt) 1.3.1
Ubuntu 16.04
bridge-utils, 1.5

Thanks

Adam

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[Adam Witwicki]

Its related to UFW, if I disable that on the host it works, but all the rules look the same between hosts?

Thanks

Adam

-----Original Message-----
From: Adam Witwicki <***@oakfordis.com>
Sent: 16 November 2018 09:35
To: ***@cloudstack.apache.org
Subject: Guest DHCP issue

** This mail originated from OUTSIDE the Oakford corporate network. Treat hyperlinks and attachments in this email with caution. **

Hello

I have recently added 2 new hosts to our cluster, but ran into an issue where guests do not receive a DHCP lease from the virtual router.
If I set the interface as static I can ping the router and all networking is fine. I'm sure must have missed a configuration step.

Any ideas?


CS version 4.11.0.0
libvirtd (libvirt) 1.3.1
Ubuntu 16.04
bridge-utils, 1.5

Thanks

Adam

Disclaimer Notice:
This email has been sent by Oakford Technology Limited, while we have checked this e-mail and any attachments for viruses, we can not guarantee that they are virus-free. You must therefore take full responsibility for virus checking.
This message and any attachments are confidential and should only be read by those to whom they are addressed. If you are not the intended recipient, please contact us, delete the message from your computer and destroy any copies. Any distribution or copying without our prior permission is prohibited.
Internet communications are not always secure and therefore Oakford Technology Limited does not accept legal responsibility for this message. The recipient is responsible for verifying its authenticity before acting on the contents. Any views or opinions presented are solely those of the author and do not necessarily represent those of Oakford Technology Limited.
Registered address: Oakford Technology Limited, 10 Prince Maurice Court, Devizes, Wiltshire. SN10 2RT.
Registered in England and Wales No. 5971519

Disclaimer Notice:
This email has been sent by Oakford Technology Limited, while we have checked this e-mail and any attachments for viruses, we can not guarantee that they are virus-free. You must therefore take full responsibility for virus checking.
This message and any attachments are confidential and should only be read by those to whom they are addressed. If you are not the intended recipient, please contact us, delete the message from your computer and destroy any copies. Any distribution or copying without our prior permission is prohibited.
Internet communications are not always secure and therefore Oakford Technology Limited does not accept legal responsibility for this message. The recipient is responsible for verifying its authenticity before acting on the contents. Any views or opinions presented are solely those of the author and do not necessarily represent those of Oakford Technology Limited.
Registered address: Oakford Technology Limited, 10 Prince Maurice Court, Devizes, Wiltshire. SN10 2RT.
Registered in England and Wales No. 5971519

[Adam Witwicki]

Sorted with sudo ufw default allow FORWARD

Thanks guys :)

-----Original Message-----
From: Adam Witwicki <***@oakfordis.com>
Sent: 16 November 2018 09:35
To: ***@cloudstack.apache.org
Subject: Guest DHCP issue

** This mail originated from OUTSIDE the Oakford corporate network. Treat hyperlinks and attachments in this email with caution. **

Hello

I have recently added 2 new hosts to our cluster, but ran into an issue where guests do not receive a DHCP lease from the virtual router.
If I set the interface as static I can ping the router and all networking is fine. I'm sure must have missed a configuration step.

Any ideas?


CS version 4.11.0.0
libvirtd (libvirt) 1.3.1
Ubuntu 16.04
bridge-utils, 1.5

Thanks

Adam

Disclaimer Notice:
This email has been sent by Oakford Technology Limited, while we have checked this e-mail and any attachments for viruses, we can not guarantee that they are virus-free. You must therefore take full responsibility for virus checking.
This message and any attachments are confidential and should only be read by those to whom they are addressed. If you are not the intended recipient, please contact us, delete the message from your computer and destroy any copies. Any distribution or copying without our prior permission is prohibited.
Internet communications are not always secure and therefore Oakford Technology Limited does not accept legal responsibility for this message. The recipient is responsible for verifying its authenticity before acting on the contents. Any views or opinions presented are solely those of the author and do not necessarily represent those of Oakford Technology Limited.
Registered address: Oakford Technology Limited, 10 Prince Maurice Court, Devizes, Wiltshire. SN10 2RT.
Registered in England and Wales No. 5971519

Disclaimer Notice:
This email has been sent by Oakford Technology Limited, while we have checked this e-mail and any attachments for viruses, we can not guarantee that they are virus-free. You must therefore take full responsibility for virus checking.
This message and any attachments are confidential and should only be read by those to whom they are addressed. If you are not the intended recipient, please contact us, delete the message from your computer and destroy any copies. Any distribution or copying without our prior permission is prohibited.
Internet communications are not always secure and therefore Oakford Technology Limited does not accept legal responsibility for this message. The recipient is responsible for verifying its authenticity before acting on the contents. Any views or opinions presented are solely those of the author and do not necessarily represent those of Oakford Technology Limited.
Registered address: Oakford Technology Limited, 10 Prince Maurice Court, Devizes, Wiltshire. SN10 2RT.
Registered in England and Wales No. 5971519

[Andrija Panic]

Yes, check the firewall thing - it can cause many different issues if not
correctly configured... I have recently had some fun because of iptables...

Post by Adam Witwicki
Sorted with sudo ufw default allow FORWARD
Thanks guys :)
-----Original Message-----
Sent: 16 November 2018 09:35
Subject: Guest DHCP issue
** This mail originated from OUTSIDE the Oakford corporate network. Treat
hyperlinks and attachments in this email with caution. **
Hello
I have recently added 2 new hosts to our cluster, but ran into an issue
where guests do not receive a DHCP lease from the virtual router.
If I set the interface as static I can ping the router and all networking
is fine. I'm sure must have missed a configuration step.
Any ideas?
CS version 4.11.0.0
libvirtd (libvirt) 1.3.1
Ubuntu 16.04
bridge-utils, 1.5
Thanks
Adam
This email has been sent by Oakford Technology Limited, while we have
checked this e-mail and any attachments for viruses, we can not guarantee
that they are virus-free. You must therefore take full responsibility for
virus checking.
This message and any attachments are confidential and should only be read
by those to whom they are addressed. If you are not the intended recipient,
please contact us, delete the message from your computer and destroy any
copies. Any distribution or copying without our prior permission is
prohibited.
Internet communications are not always secure and therefore Oakford
Technology Limited does not accept legal responsibility for this message.
The recipient is responsible for verifying its authenticity before acting
on the contents. Any views or opinions presented are solely those of the
author and do not necessarily represent those of Oakford Technology Limited.
Registered address: Oakford Technology Limited, 10 Prince Maurice Court,
Devizes, Wiltshire. SN10 2RT.
Registered in England and Wales No. 5971519
This email has been sent by Oakford Technology Limited, while we have
checked this e-mail and any attachments for viruses, we can not guarantee
that they are virus-free. You must therefore take full responsibility for
virus checking.
This message and any attachments are confidential and should only be read
by those to whom they are addressed. If you are not the intended recipient,
please contact us, delete the message from your computer and destroy any
copies. Any distribution or copying without our prior permission is
prohibited.
Internet communications are not always secure and therefore Oakford
Technology Limited does not accept legal responsibility for this message.
The recipient is responsible for verifying its authenticity before acting
on the contents. Any views or opinions presented are solely those of the
author and do not necessarily represent those of Oakford Technology Limited.
Registered address: Oakford Technology Limited, 10 Prince Maurice Court,
Devizes, Wiltshire. SN10 2RT.
Registered in England and Wales No. 5971519