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Description of problem:
See also bz1245951.
While iface inicialization when dad fails, ipv6 address remains tentative and script remains in the loop for 30s logging
INFO : [ipv6_wait_tentative] Waiting for interface eth0 IPv6 address(es) to leave the "tentative" state
Version-Release number of selected component (if applicable):
initscripts-9.49.37-1.el7
How reproducible:
always
Steps to Reproduce:
1. stop NetworkManager
2. configure two ifaces to same ipv6 address
3. bring up both devices
Actual results:
takes 30s to ifup the second device
Expected results:
ifup exits when address is in dadfailed state
Additional info:
network-functions-ipv6 uses following command to detect tentative addresses, but should ignore dadfailed ones.
# ip -6 addr show dev eth0 scope global tentative
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1400 state UP qlen 1000
inet6 aaaa:bbbb:cccc::1234/64 scope global tentative dadfailed
valid_lft forever preferred_lft forever
Comment 2David Kaspar // Dee'Kej
2016-09-27 14:36:47 UTC
Created attachment 1205240[details]
exit-immediately-when-dadfailed.patch
I have rewritten the previously patched code, to test for dadfailed.
+ added info output in case the interface is still in tentative state after the loop ends
+ refactored the code a little
Comment 3David Kaspar // Dee'Kej
2016-10-04 13:06:34 UTC
Created attachment 1207172[details]
exit-immediately-when-dadfailed.patch
New version of the patch. I have fixed the missing variable name in if-condition, and corrected the error message.
Comment 5David Kaspar // Dee'Kej
2017-03-22 17:43:59 UTC
With initscripts-9.49.39-1.el7 bringing iface with duplicate ipv6 immediately exits with following output:
INFO : [ipv6_wait_tentative] Waiting for interface eth0 IPv6 address(es) to leave the 'tentative' state
ERROR : [ipv6_wait_tentative] Duplicate Address Detection: Duplicate addresses detected
ERROR : [ipv6_wait_tentative] Duplicate Address Detection: Please, fix your network configuration
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2017:2286