[ 1620.605258][ T1339] gre: GRE over IPv4 demultiplexer driver
[ 1621.134469][ T1362] ip_gre: GRE over IPv4 tunneling driver
[ 1627.582692][ T1617] ping (1617) used greatest stack depth: 23504 bytes left
[ 1638.736300][ T1937] ip6_gre: GRE over IPv6 tunneling driver
[ 1650.622483][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1652.671460][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1654.527492][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1656.638494][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!