Bug 649019
| Summary: | Even when IP6 is unchecked in the installation, it is still enabled afterward | ||||||
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| Product: | Red Hat Enterprise Linux 5 | Reporter: | boardstretcher | ||||
| Component: | anaconda | Assignee: | Radek Vykydal <rvykydal> | ||||
| Status: | CLOSED DUPLICATE | QA Contact: | Release Test Team <release-test-team-automation> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | low | ||||||
| Version: | 5.5 | ||||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2010-11-10 16:26:40 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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I meant RHEL 5. But, CentOS anaconda does the same thing. Well, we never used to disable ipv6 completely in rhel 5 by this choice, we just don't do any ipv6 configuration for the device if ipv6 is unchecked. The local link address is assigned to the device by kernel ipv6 stack automatically and it should be completely harmless. To actually disable ipv6 support we'd need to blacklist the ipv6 module. A couple things I have seen is that it causes DNS slowdowns until it is completely disabled, and there is traffic created for the IP6 address. I already described how to disable IP6 in my documentation, so it isn't a problem for me. I simply wished to mention that the installation has a choice to "Disable ip6" that doesn't "disable ip6" completely. (In reply to comment #3) > > I already described how to disable IP6 in my documentation, so it isn't a > problem for me. I simply wished to mention that the installation has a choice > to "Disable ip6" that doesn't "disable ip6" completely. Yes, thanks for reporting it. We should probably think about better UI wording, at least for rhel 6. This is very close related to #537887. It might even be a duplicate. *** This bug has been marked as a duplicate of bug 537887 *** |
Created attachment 457249 [details] screenshot of IP6 enabled while specifically being disabled in the installation In the "Network Configuration for eth?" screen while installing,.. if you leave "Enable IPv6 support" unchecked, centos will still enable IP6. When going through the CentOS installation, you run into a screen, that has a selection: [ ] Enable Ip6 [X] Enable Ip4 Even when IP6 is unchecked, it is still enabled. Screenshots attached.