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moby/libnetwork/testdata/TestUserChain_iptables-true_append-false_fwdinit4
Rob Murray 984a610a21 Add chain DOCKER-FORWARD
In 28.0.0, Docker appended to the FORWARD chain - breaking other
applications that had appended their own rules that needed to execute
after Docker's rules.

Move most of Docker's rules out of the filter-FORWARD chain into a
new DOCKER-FORWARD chain, so that Docker can append to DOCKER-FORWARD
without affecting the order of rules in the FORWARD chain.

After daemon startup inserts jumps to DOCKER-USER and DOCKER-FORWARD,
the bridge driver will not touch the FORWARD chain again. DOCKER-INGRESS
is still added to the FORWARD chain, if used, as it was in 27.x and
earlier.

Signed-off-by: Rob Murray <rob.murray@docker.com>
2025-02-24 17:09:09 +00:00

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-P FORWARD ACCEPT
-A FORWARD -j DOCKER-USER
-A FORWARD -j DOCKER-FORWARD