@jsalisbury: I can still reproduce this issue with the kernel in #12...
$ uname -a
Linux cola 4.8.0-49-generic #52~lp1679823 SMP Tue Apr 25 17:29:26 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
$ dmesg | grep enp4s0
[ 1.194350] e1000e 0000:04:00.0 enp4s0: renamed from eth0
[ 53.469795] enp4s0: Invalid MTU 9000 requested, hw max 68
$ dpkg -l | grep 4.8.0-49
ii linux-headers-4.8.0-49 4.8.0-49.52~lp1679823 all Header files related to Linux kernel version 4.8.0
ii linux-headers-4.8.0-49-generic 4.8.0-49.52~lp1679823 amd64 Linux kernel headers for version 4.8.0 on 64 bit x86 SMP
ii linux-image-4.8.0-49-generic 4.8.0-49.52~lp1679823 amd64 Linux kernel image for version 4.8.0 on 64 bit x86 SMP
ii linux-image-extra-4.8.0-49-generic 4.8.0-49.52~lp1679823 amd64 Linux kernel extra modules for version 4.8.0 on 64 bit x86 SMP
@jsalisbury: I can still reproduce this issue with the kernel in #12...
$ uname -a 4.8.0-49 4.8.0-49. 52~lp1679823 all Header files related to Linux kernel version 4.8.0 4.8.0-49- generic 4.8.0-49. 52~lp1679823 amd64 Linux kernel headers for version 4.8.0 on 64 bit x86 SMP 4.8.0-49- generic 4.8.0-49. 52~lp1679823 amd64 Linux kernel image for version 4.8.0 on 64 bit x86 SMP extra-4. 8.0-49- generic 4.8.0-49. 52~lp1679823 amd64 Linux kernel extra modules for version 4.8.0 on 64 bit x86 SMP
Linux cola 4.8.0-49-generic #52~lp1679823 SMP Tue Apr 25 17:29:26 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
$ dmesg | grep enp4s0
[ 1.194350] e1000e 0000:04:00.0 enp4s0: renamed from eth0
[ 53.469795] enp4s0: Invalid MTU 9000 requested, hw max 68
$ dpkg -l | grep 4.8.0-49
ii linux-headers-
ii linux-headers-
ii linux-image-
ii linux-image-