[ 3721.521559][T15049] gre: GRE over IPv4 demultiplexer driver
[ 3723.224731][T15072] ip_gre: GRE over IPv4 tunneling driver
[ 3753.967741][T15418] ping (15418) used greatest stack depth: 24016 bytes left
[ 3774.699259][T15643] ip6_gre: GRE over IPv6 tunneling driver
[ 3796.892880][T15892] ping (15892) used greatest stack depth: 23648 bytes left
[ 3810.512051][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3815.823948][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3820.240039][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3825.680956][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!