TAN/TUP devices are reported as 10 Mbit which results in https://bugzilla.redhat.com/show_bug.cgi?id=1286792 and is plain wrong, the bandwidth is limited by the physical connection behind the tunnel and can't be detected that easily if it comes to bridges and forwarding-rules however, 10 Mbit is not true and has side-effects like with vnstat $ cat /sys/class/net/tun0/speed 10 [root@srv-rhsoft:~]$ cat /sys/class/net/vpn-server/speed 10 [root@srv-rhsoft:~]$ cat /sys/class/net/vpn-client/speed 10
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 23 kernel bugs. Fedora 23 has now been rebased to 4.7.4-100.fc23. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 24 or 25, and are still experiencing this issue, please change the version to Fedora 24 or 25. If you experience different issues, please open a new bug report for those.
the same nonsense with a recent kernel on F24 yes the device was renamed but the same setup [root@srv-rhsoft:~]$ cat /sys/class/net/vpn-server/speed 10 [root@srv-rhsoft:~]$ uname -a Linux srv-rhsoft.rhsoft.net 4.7.4-200.fc24.x86_64 #1 SMP Thu Sep 15 18:42:09 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
vpn-server: tup vpn-client: tap WAN-connection: 250 down / 25 up [root@srv-rhsoft:~]$ cat /sys/class/net/vpn-server/speed 10 [root@srv-rhsoft:~]$ cat /sys/class/net/vpn-client/speed 10
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There are a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 24 kernel bugs. Fedora 25 has now been rebased to 4.10.9-100.fc24. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 26, and are still experiencing this issue, please change the version to Fedora 26. If you experience different issues, please open a new bug report for those.
the same nonsense with Fedora 25 and Kernel 4.10.9-200.fc25.x86_64 [root@srv-rhsoft:~]$ cat /sys/class/net/vpn-client/speed 10
Unfortunately, this is not so much a bug, as an upstream feature request. The current code does not check anything, it forces a value of 10 always. I am closing this as upstream, and have linked the kernel bugzilla dealing with it. Fedora will be happy to support this feature once it exists.