[ 1477.451566][T24556] gre: GRE over IPv4 demultiplexer driver
[ 1477.957522][T24579] ip_gre: GRE over IPv4 tunneling driver
[ 1493.704236][T25150] ip6_gre: GRE over IPv6 tunneling driver
[ 1499.173963][T25399] ping (25399) used greatest stack depth: 23072 bytes left
[ 1504.016287][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1506.000257][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1507.855263][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1509.840260][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!