[ 4454.030419][T26302] gre: GRE over IPv4 demultiplexor driver
[ 4456.092011][T26325] ip_gre: GRE over IPv4 tunneling driver
[ 4482.226450][T26577] ping (26577) used greatest stack depth: 23664 bytes left
[ 4516.130301][T26896] ip6_gre: GRE over IPv6 tunneling driver
[ 4542.380733][T27146] ping (27146) used greatest stack depth: 23616 bytes left
[ 4557.911550][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4563.735436][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4568.662420][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4574.422488][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4724.230564][T28852] ping (28852) used greatest stack depth: 23056 bytes left