Comment 42 for bug 1462154

Reviewed: https://review.openstack.org/289172
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=a388f78c8cb4b1c860bfc11029b5210955f1932d
Submitter: Jenkins
Branch: master

commit a388f78c8cb4b1c860bfc11029b5210955f1932d
Author: Hong Hui Xiao <email address hidden>
Date: Thu May 12 05:48:15 2016 +0000

    DVR: Pings to floatingip returns with fixed-ip on same network

    Pinging a floatingip of VM1 from a second VM(VM2) which has SNAT
    enabled connected to a DVR router on the same network returns
    with fixed-ip address rather than the floatingip address.

    The NAT forwarding rules for floatingip in the router namespace
    does not check for the in coming port and tries to add the rule
    for all in coming ports.

    This causes the packets that are originating from the router
    namespace to be modified and forwarded directly to the VM2 fixed
    ip instead of forwarding the traffic to the SNAT namespace.

    The fix in here will make sure that for all routers, the floatingip
    forwarding rules will be applied only to the 'rfp-' internal ports
    and not to all ports.

    Change-Id: I9453beffd94bf685afd74b0820506fb6b7c996c4
    Closes-Bug: #1462154
    Co-Authored-By: Hong Hui Xiao <email address hidden>