Looks like this got punted to 3.13.0-106, which I installed it from the canonical-kernel-team ppa. This bug appears to be solved in -106.
thomasco@dev:~$ uname -a Linux dev 3.13.0-106-generic #153-Ubuntu SMP Tue Dec 6 15:44:32 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux thomasco@dev:~$ sudo sysctl -w net.ipv4.neigh.default.gc_thresh3=4096 net.ipv4.neigh.default.gc_thresh3 = 4096 thomasco@dev:~$ cat /proc/sys/net/ipv4/neigh/default/gc_thresh3 4096 thomasco@dev:~$
Looks like this got punted to 3.13.0-106, which I installed it from the canonical- kernel- team ppa. This bug appears to be solved in -106.
thomasco@dev:~$ uname -a neigh.default. gc_thresh3= 4096 neigh.default. gc_thresh3 = 4096 net/ipv4/ neigh/default/ gc_thresh3
Linux dev 3.13.0-106-generic #153-Ubuntu SMP Tue Dec 6 15:44:32 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
thomasco@dev:~$ sudo sysctl -w net.ipv4.
net.ipv4.
thomasco@dev:~$ cat /proc/sys/
4096
thomasco@dev:~$