[ 4233.185635][T21198] gre: GRE over IPv4 demultiplexor driver
[ 4234.814680][T21221] ip_gre: GRE over IPv4 tunneling driver
[ 4255.394937][T21475] ping (21475) used greatest stack depth: 23680 bytes left
[ 4283.105454][T21801] ip6_gre: GRE over IPv6 tunneling driver
[ 4303.853103][T22050] ping (22050) used greatest stack depth: 23440 bytes left
[ 4316.780547][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4321.707461][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4325.996459][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4331.052463][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4404.592870][T23240] ping (23240) used greatest stack depth: 23312 bytes left