[ 1564.752335][T28398] gre: GRE over IPv4 demultiplexer driver
[ 1565.231291][T28421] ip_gre: GRE over IPv4 tunneling driver
[ 1581.752546][T28994] ip6_gre: GRE over IPv6 tunneling driver
[ 1587.647311][T29243] ping (29243) used greatest stack depth: 22096 bytes left
[ 1588.743520][   T60] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1592.663383][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1594.776383][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1596.632385][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1598.743394][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!