[ 4453.501538][T26078] gre: GRE over IPv4 demultiplexor driver
[ 4455.623029][T26101] ip_gre: GRE over IPv4 tunneling driver
[ 4517.560945][T26673] ip6_gre: GRE over IPv6 tunneling driver
[ 4559.951579][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4565.902526][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4571.086543][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4577.039500][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4783.556284][T29149] ping (29149) used greatest stack depth: 22736 bytes left