Bug 1027134 – Firewall prevents networking in VMs

Bug 1027134 - Firewall prevents networking in VMs

Summary:	Firewall prevents networking in VMs

Status:	CLOSED INSUFFICIENT_DATA

Aliases:	None

Product:	Fedora
Classification:	Fedora
Component:	firewalld (Show other bugs)
Sub Component:
Version:	19
Hardware:	Unspecified Unspecified

Priority	unspecified Severity unspecified
Target Milestone:	---
Target Release:	---
Assigned To:	Thomas Woerner
QA Contact:	Fedora Extras Quality Assurance
Docs Contact:

URL:
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Depends On:
Blocks:
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Reported:	2013-11-06 03:53 EST by Kai Engert (:kaie)
Modified:	2014-06-10 13:15 EDT (History)
CC List:	3 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2014-06-10 13:15:15 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
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Description Kai Engert (:kaie) 2013-11-06 03:53:46 EST

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 11:54:54 EST

What kind of VMs have you been using? Created and set up by libvirt?

Comment 2 Kai Engert (:kaie) 2013-11-29 14:27:56 EST

Yes, all of them had been created using virt-manager. Linux VMs, RHEL/Fedora.

Comment 3 Thomas Woerner 2013-12-02 06:18:58 EST

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) 2014-06-10 13:15:15 EDT

Looks I didn't have the time to follow up with the requested details :(

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