[ 4429.303556][T26133] gre: GRE over IPv4 demultiplexor driver
[ 4431.477838][T26156] ip_gre: GRE over IPv4 tunneling driver
[ 4492.169755][T26728] ip6_gre: GRE over IPv6 tunneling driver
[ 4518.710710][T26984] ping (26984) used greatest stack depth: 22080 bytes left
[ 4534.333900][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4540.157760][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4545.021741][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4550.781771][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!