Red Hat Bugzilla – Bug 848618
1.69 second delay after ip -6 addr add before ip -6 route add for new ip works (scripting)
Last modified: 2013-07-31 19:36:54 EDT
Description of problem:
after adding an ipv6 ip with "ip addr add" you can not add a route for that ip for 1.69 seconds.
Version-Release number of selected component (if applicable):
ip utility, iproute2-ss120319
Steps to Reproduce:
i wrote a bash script to demo the problem:
script will add an ip (2001::5) then attempt to add a route for that ip as fast as possible (with timestamps).
CHANGE em1 TO YOUR INTERFACE (two occurrences)
ip addr replace 2012::5 dev em1 && while :; do echo "`date +%s-%N` `ip -6 route replace 2012::/64 dev em1 src 2012::5 2>&1`" >> temp; done
contents to temp will start with a few hundred (200-400) lines of:
Example: 1345085902-895959857 RTNETLINK answers: Invalid argument
then change once the route is successfully added
It takes about 1.69 seconds on average before a route can be added which is annoying for scripts.
no delay (works for ipv4 just fine)
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