[ 4679.973303][T24892] gre: GRE over IPv4 demultiplexor driver
[ 4682.130929][T24915] ip_gre: GRE over IPv4 tunneling driver
[ 4710.496308][T25167] ping (25167) used greatest stack depth: 23904 bytes left
[ 4746.636266][T25490] ip6_gre: GRE over IPv6 tunneling driver
[ 4774.857755][T25739] ping (25739) used greatest stack depth: 23600 bytes left
[ 4791.237546][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4797.445422][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4802.693436][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4808.837445][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4912.154019][T26928] ping (26928) used greatest stack depth: 22912 bytes left