In a situation where user user enables an address from a range he's using on different interface already on a higher-priority interface, rp_filter drops traffic from the original interface.
That causes the existing connections to time out.
A typical scenario is user with a router, that bridges wired LAN and WLAN plugging in a cable while he's already connected to a WLAN.
We need to figure out what to do about this.
One possibility is relaxing rp_filter on Workstation (from =1 to =2). Another would be dynamically changing the rp_filter if we detect the aforementioned situation.
Currently the rp_filter=1 is enabled by systemd's sysctl.conf.d
Went in upstream: https://bugzilla.gnome.org/show_bug.cgi?id=780155
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.