[ 3174.896165][T29077] gre: GRE over IPv4 demultiplexor driver
[ 3176.038671][T29101] ip_gre: GRE over IPv4 tunneling driver
[ 3212.031410][T29687] ip6_gre: GRE over IPv6 tunneling driver
[ 3218.614328][T26351] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3232.000592][T30038] ping (30038) used greatest stack depth: 23360 bytes left
[ 3236.214138][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3239.990152][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3243.190157][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3246.902140][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!