[ 1661.344255][T27016] gre: GRE over IPv4 demultiplexer driver
[ 1661.805152][T27039] ip_gre: GRE over IPv4 tunneling driver
[ 1678.608275][T27610] ip6_gre: GRE over IPv6 tunneling driver
[ 1684.591558][T27860] ping (27860) used greatest stack depth: 22896 bytes left
[ 1689.661721][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1691.774686][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1693.693687][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1695.806680][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1718.125513][T28992] ping (28992) used greatest stack depth: 22336 bytes left