[ 4406.221356][T25863] gre: GRE over IPv4 demultiplexor driver
[ 4408.137506][T25886] ip_gre: GRE over IPv4 tunneling driver
[ 4468.116181][T26458] ip6_gre: GRE over IPv6 tunneling driver
[ 4493.813686][T26707] ping (26707) used greatest stack depth: 23616 bytes left
[ 4509.172734][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4514.932650][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4519.796681][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4525.685662][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4607.262175][T27799] ping (27799) used greatest stack depth: 23040 bytes left