[ 4377.257892][T29214] gre: GRE over IPv4 demultiplexer driver
[ 4378.882650][T29237] ip_gre: GRE over IPv4 tunneling driver
[ 4407.190931][T29584] ping (29584) used greatest stack depth: 23344 bytes left
[ 4427.706351][T29811] ip6_gre: GRE over IPv6 tunneling driver
[ 4453.092682][T28563] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 4462.052573][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4467.044549][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4471.268553][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4476.196540][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!