[ 4470.133264][T29268] gre: GRE over IPv4 demultiplexer driver
[ 4471.832900][T29291] ip_gre: GRE over IPv4 tunneling driver
[ 4521.646220][T29863] ip6_gre: GRE over IPv6 tunneling driver
[ 4542.931354][T30112] ping (30112) used greatest stack depth: 23040 bytes left
[ 4555.963744][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4560.890672][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4565.178679][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4570.106689][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!