[ 4402.418730][T22413] gre: GRE over IPv4 demultiplexor driver
[ 4404.368395][T22436] ip_gre: GRE over IPv4 tunneling driver
[ 4464.828378][T23009] ip6_gre: GRE over IPv6 tunneling driver
[ 4509.251702][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4515.140605][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4520.324616][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4526.339634][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4754.411304][T25523] ping (25523) used greatest stack depth: 22432 bytes left