[ 4114.898373][T28711] gre: GRE over IPv4 demultiplexer driver
[ 4116.701233][T28734] ip_gre: GRE over IPv4 tunneling driver
[ 4167.039195][T29306] ip6_gre: GRE over IPv6 tunneling driver
[ 4195.875305][T29650] ping (29650) used greatest stack depth: 23440 bytes left
[ 4201.063077][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4205.989994][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4210.406001][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4215.589978][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!