[ 4379.609053][T29198] gre: GRE over IPv4 demultiplexer driver
[ 4381.207239][T29221] ip_gre: GRE over IPv4 tunneling driver
[ 4429.547910][T29797] ip6_gre: GRE over IPv6 tunneling driver
[ 4450.295325][T30046] ping (30046) used greatest stack depth: 23440 bytes left
[ 4462.838734][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4467.639669][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4471.734708][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4476.534703][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4651.361811][T32410] ping (32410) used greatest stack depth: 23008 bytes left