gre0: gre_output: recursively called too many times

И так если вы настроили на  Freebsd GRE тунель , все работает корректно , но иногда появляются записи в /var/log/messege :

Dec 24 10:18:59 gw kernel: gre0: gre_output: recursively called too many times(3)
Dec 24 10:34:07 gw kernel: gre0: gre_output: recursively called too many times(3)
Dec 24 10:47:49 gw kernel: gre0: gre_output: recursively called too many times(3)
Dec 24 10:50:03 gw kernel: gre0: gre_output: recursively called too many times(3)
Dec 24 11:04:32 gw last message repeated 2 times
Dec 24 11:17:58 gw kernel: gre0: gre_output: recursively called too many times(3)
Dec 24 11:26:57 gw last message repeated 2 times
Dec 24 11:30:46 gw last message repeated 2 times
Dec 24 11:47:03 gwn kernel: gre0: gre_output: recursively called too many times(3)
Dec 24 11:51:13 gw kernel: gre0: gre_output: recursively called too many times(3)
Dec 24 12:01:46 gwn kernel: gre0: gre_output: recursively called too many times(3)gre0: gre_output: recursively called too many times(4)
Dec 24 12:01:46 gw kernel:
Dec 24 12:01:47 gw kernel: gre0: gre_output: recursively called too mgaren0y:  gtriem_eos(utput: recurs3i)vely called too many times(4)
Dec 24 12:01:47 gw kernel:

выполняем :

#sysctl net.link.gre.max_nesting=10

и в /etc/sysctl.conf  добавляем  sysctl net.link.gre.max_nesting=10 , может и = 2 , но я уже лупанул с запасом .

В общем более в логах нет этих записей , вопрос решился .