[ 4472.205917][T26208] gre: GRE over IPv4 demultiplexor driver
[ 4474.236640][T26231] ip_gre: GRE over IPv4 tunneling driver
[ 4538.737852][T26809] ip6_gre: GRE over IPv6 tunneling driver
[ 4572.147800][T27058] ping (27058) used greatest stack depth: 23648 bytes left
[ 4590.004543][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4596.148433][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4601.460444][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4607.541416][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!