Bug 1027134 - Firewall prevents networking in VMs
Summary: Firewall prevents networking in VMs
Keywords:
Status: CLOSED INSUFFICIENT_DATA
Alias: None
Product: Fedora
Classification: Fedora
Component: firewalld
Version: 19
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Thomas Woerner
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-11-06 08:53 UTC by Kai Engert (:kaie) (inactive account)
Modified: 2014-06-10 17:15 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2014-06-10 17:15:15 UTC
Type: Bug
Embargoed:

Attachments (Terms of Use)

Description Kai Engert (:kaie) (inactive account) 2013-11-06 08:53:46 UTC 
Installed a fresh F19.

Attempted to make use of VMs that I had used on a different system.

Actual behaviour:
VMs couldn't start networking, they were stuck in "connecting"

I didn't think of the defaul firewall as a potential cause.
Once I did, the only obvious remedy was: disable firewall

Questions:
(a) Could firewalld allow communication with local VMs by default?
(b) If (a) => no, then:
    Could there be an easily discoverable fix to allow the user
    to allow such communication, without having to disable the firewall?
Comment 1 Thomas Woerner 2013-11-29 16:54:54 UTC 
What kind of VMs have you been using? Created and set up by libvirt?
Comment 2 Kai Engert (:kaie) (inactive account) 2013-11-29 19:27:56 UTC 
Yes, all of them had been created using virt-manager. Linux VMs, RHEL/Fedora.
Comment 3 Thomas Woerner 2013-12-02 11:18:58 UTC 
Are there errors in the logs related to libvirt or firewalld?
Is the libvirt configuration modified?

Please attach the output of the iptables-save command.
Comment 4 Kai Engert (:kaie) (inactive account) 2014-06-10 17:15:15 UTC 
Looks I didn't have the time to follow up with the requested details :(
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