[ 4656.458467][T24759] gre: GRE over IPv4 demultiplexor driver
[ 4658.591276][T24783] ip_gre: GRE over IPv4 tunneling driver
[ 4722.338530][T25370] ip6_gre: GRE over IPv6 tunneling driver
[ 4766.783708][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4772.928659][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4778.240631][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4784.576621][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4904.431658][T26945] ping (26945) used greatest stack depth: 23104 bytes left