[ 3131.550903][T28977] gre: GRE over IPv4 demultiplexor driver
[ 3132.697364][T29000] ip_gre: GRE over IPv4 tunneling driver
[ 3168.377551][T29572] ip6_gre: GRE over IPv6 tunneling driver
[ 3183.094826][T29822] ping (29822) used greatest stack depth: 23360 bytes left
[ 3186.188755][T26222] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3192.781600][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3196.492633][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3199.756636][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3203.532603][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!