[Bug 1324] with kernel 4.20.11 ip6table REDIRECT, process listening on redirected port does not get a packet

bugzilla-daemon at netfilter.org bugzilla-daemon at netfilter.org
Fri Mar 1 15:15:04 CET 2019


https://bugzilla.netfilter.org/show_bug.cgi?id=1324

Florian Westphal <fw at strlen.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fw at strlen.de

--- Comment #1 from Florian Westphal <fw at strlen.de> ---
This is most likely fixed by

commit 15df03c661cb362366ecfc3a21820cb934f3e4ca
netfilter: ipv6: Don't preserve original oif for loopback address

which was added to 4.20.13.
If that doesn't help, please provide a reproducer.
This works for me:
nc -6 -l -p 12344
ip6tables -t nat -A OUTPUT -p tcp --dport 12345 -j REDIRECT --to-ports 12344
nc -6 ::1 12345 # connects

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