[ 3545.347526][T17625] gre: GRE over IPv4 demultiplexor driver
[ 3547.397342][T17648] ip_gre: GRE over IPv4 tunneling driver
[ 3569.055314][T17850] ping (17850) used greatest stack depth: 23216 bytes left
[ 3609.806746][T18224] ip6_gre: GRE over IPv6 tunneling driver
[ 3652.497014][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3658.447907][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3663.439908][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3669.455900][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!