Bug 643890
| Summary: | dhclient refuses to prepend ipv6 nameservers | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Peter Lemenkov <lemenkov> |
| Component: | dhcp | Assignee: | Jiri Popelka <jpopelka> |
| Status: | CLOSED UPSTREAM | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | 23 | CC: | jaroslaw.polok, jpopelka, kenyon |
| Target Milestone: | --- | Keywords: | Reopened |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-12-20 12:03:31 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: | |||
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Description
Peter Lemenkov
2010-10-18 12:42:06 UTC
(In reply to comment #0) > prepend domain-name-servers 2001:470:20::2 ; correct is prepend dhcp6.name-servers 2001:470:20::2; (see dhcp-options(5) man page) but it seems that dhclient is really ignoring it. I'm trying to figure out what's wrong. I asked upstream, but no response. https://lists.isc.org/pipermail/dhcp-users/2010-October/012126.html I must admit that networking sub-system is really complex!
I looked at the sources and sound something interesting (in /sbin/dhclient-script).
I just added echo ${reason} right before "case "${reason}" in" in /sbin/dhclient-script and found that it gets PREINIT and REBOOT while has being configured for ipv4, but only PREINIT6 while has being configured for ipv6.
The dhconfig function is called in case of "REBOOT" for ipv4 but dh6config is never called (no BOUND6|RENEW6|REBIND6|DEPREF6 parameter was ever passed to this script).
I also looked at the dhcp client's sources and found that no BOUND6|RENEW6|REBIND6|DEPREF6 strings were ever hardcoded so dh6config have no chances to be called. So there are two possible issues -
a) /sbin/dhclient-scrips is out of sync with dhclient (no BOUND6|RENEW6|REBIND6|DEPREF6 in dhclient)
b) dhclient erroneously doesn't try to execute post-INIT hooks (REBOOT, in case of ipv4).
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If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora, you are encouraged change the 'version' to a later Fedora version prior this bug is closed as described in the policy above. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. This message is a reminder that Fedora 23 is nearing its end of life. Approximately 4 (four) weeks from now Fedora will stop maintaining and issuing updates for Fedora 23. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a Fedora 'version' of '23'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora 23 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora, you are encouraged change the 'version' to a later Fedora version prior this bug is closed as described in the policy above. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. Fedora 23 changed to end-of-life (EOL) status on 2016-12-20. Fedora 23 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed. Has already been fixed upstream https://source.isc.org/cgi-bin/gitweb.cgi?p=dhcp.git;a=commitdiff;h=a3471269e693cc4b49666874d5e57a6c9151b3b0 and will be part of 4.4.0 (currently in pre-alpha). |