I have tested this on Jaunty and as far as I can see user setting the MTU within NM do get applied to the network interface. Even after disable and enable networking. NM version is 0.7~~svn20081018t105859`-0ubuntu1. lsb_release -rd Description: Ubuntu Jaunty (development branch) Release: 9.04
apt-cache policy network-manager network-manager: Installed: 0.7~~svn20081018t105859-0ubuntu1 Candidate: 0.7~~svn20081018t105859-0ubuntu1 Version table: *** 0.7~~svn20081018t105859-0ubuntu1 0 500 http://nl.archive.ubuntu.com jaunty/main Packages 100 /var/lib/dpkg/status What did I do: 1. Look at the MTU via "ifconfig eth0" which was 1500 2. Went to Network Connections->eth0->Edit and Customize MTU to 500 3. OK and Close 4. Disable Networking and then Enable Networking 5. Check if the MTU is still there within Network Connections->eth0->Edit 6. Check MTU with "ifconfig eth0" -- NM 0.7 Fails To Set Custom MTU https://bugs.launchpad.net/bugs/258743 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs