[ 1376.698623][T30420] gre: GRE over IPv4 demultiplexer driver
[ 1377.134055][T30443] ip_gre: GRE over IPv4 tunneling driver
[ 1392.383893][T31014] ip6_gre: GRE over IPv6 tunneling driver
[ 1397.629214][T31263] ping (31263) used greatest stack depth: 22912 bytes left
[ 1402.363232][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1404.283207][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1406.075199][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1408.060218][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!