[ 1531.642581][  T511] gre: GRE over IPv4 demultiplexer driver
[ 1532.105787][  T534] ip_gre: GRE over IPv4 tunneling driver
[ 1547.900814][ T1111] ip6_gre: GRE over IPv6 tunneling driver
[ 1553.397727][ T1360] ping (1360) used greatest stack depth: 23344 bytes left
[ 1558.267154][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1560.251122][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1562.108107][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1564.155115][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!