[ 1395.078607][T31113] gre: GRE over IPv4 demultiplexer driver
[ 1395.536413][T31136] ip_gre: GRE over IPv4 tunneling driver
[ 1411.073858][T31707] ip6_gre: GRE over IPv6 tunneling driver
[ 1416.450487][T31956] ping (31956) used greatest stack depth: 22528 bytes left
[ 1421.198326][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1423.181285][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1425.037289][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1427.021288][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!