[ 1519.591074][ T7771] gre: GRE over IPv4 demultiplexer driver
[ 1520.076054][ T7794] ip_gre: GRE over IPv4 tunneling driver
[ 1536.846291][ T8368] ip6_gre: GRE over IPv6 tunneling driver
[ 1544.957274][ T8719] ping (8719) used greatest stack depth: 22416 bytes left
[ 1547.872958][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1549.984912][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1551.904919][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1554.017927][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!