[ 4087.689318][T28753] gre: GRE over IPv4 demultiplexer driver
[ 4089.361720][T28776] ip_gre: GRE over IPv4 tunneling driver
[ 4137.907071][T29349] ip6_gre: GRE over IPv6 tunneling driver
[ 4166.573610][T20207] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 4171.307200][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4176.235203][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4180.395169][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4185.259207][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4252.267704][T30680] ping (30680) used greatest stack depth: 23104 bytes left