[ 1540.745206][ T1580] gre: GRE over IPv4 demultiplexer driver
[ 1541.200006][ T1603] ip_gre: GRE over IPv4 tunneling driver
[ 1546.590721][ T1855] ping (1855) used greatest stack depth: 23104 bytes left
[ 1556.612750][ T2174] ip6_gre: GRE over IPv6 tunneling driver
[ 1557.139146][   T68] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1566.667088][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1568.652086][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1570.443087][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1572.427097][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!