[ 1734.355817][T10373] gre: GRE over IPv4 demultiplexer driver
[ 1734.861983][T10396] ip_gre: GRE over IPv4 tunneling driver
[ 1751.503220][T10974] ip6_gre: GRE over IPv6 tunneling driver
[ 1757.416505][T11224] ping (11224) used greatest stack depth: 23552 bytes left
[ 1759.547722][T11318] ping (11318) used greatest stack depth: 22976 bytes left
[ 1762.455440][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1764.568397][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1766.487442][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1768.600394][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!