[ 1399.162949][T29583] gre: GRE over IPv4 demultiplexer driver
[ 1399.668014][T29606] ip_gre: GRE over IPv4 tunneling driver
[ 1415.514364][T30179] ip6_gre: GRE over IPv6 tunneling driver
[ 1418.055355][T11571] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1422.967147][T30522] ping (30522) used greatest stack depth: 22816 bytes left
[ 1425.823277][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1427.807280][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1429.662289][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1431.711284][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!