[ 1538.535242][T28465] gre: GRE over IPv4 demultiplexer driver
[ 1539.027118][T28488] ip_gre: GRE over IPv4 tunneling driver
[ 1545.206699][T28740] ping (28740) used greatest stack depth: 23344 bytes left
[ 1556.196486][T29059] ip6_gre: GRE over IPv6 tunneling driver
[ 1562.480925][   T74] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1567.471849][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1569.584834][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1571.504839][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1573.616843][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!