[ 3201.832480][T27774] gre: GRE over IPv4 demultiplexor driver
[ 3202.989165][T27797] ip_gre: GRE over IPv4 tunneling driver
[ 3242.881562][T28368] ip6_gre: GRE over IPv6 tunneling driver
[ 3258.741671][ T5405] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3268.469620][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3272.246528][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3275.509542][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3279.413678][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3399.398418][T30859] ping (30859) used greatest stack depth: 22928 bytes left