[ 3174.016083][T20958] gre: GRE over IPv4 demultiplexor driver
[ 3175.313461][T20988] ip_gre: GRE over IPv4 tunneling driver
[ 3210.781228][T21567] ip6_gre: GRE over IPv6 tunneling driver
[ 3230.621946][T21910] ping (21910) used greatest stack depth: 23360 bytes left
[ 3231.012898][  T252] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3234.786495][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3238.498497][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3241.827492][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3245.602521][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3266.051735][T22476] ping (22476) used greatest stack depth: 23344 bytes left