[ 4446.438338][T26101] gre: GRE over IPv4 demultiplexor driver
[ 4448.457172][T26124] ip_gre: GRE over IPv4 tunneling driver
[ 4508.435859][T26703] ip6_gre: GRE over IPv6 tunneling driver
[ 4534.494674][T26952] ping (26952) used greatest stack depth: 23648 bytes left
[ 4550.121684][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4556.008618][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4561.001627][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4566.952657][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4637.354998][T27905] ping (27905) used greatest stack depth: 23136 bytes left