[ 4399.705037][T26177] gre: GRE over IPv4 demultiplexor driver
[ 4401.829626][T26200] ip_gre: GRE over IPv4 tunneling driver
[ 4463.724861][T26771] ip6_gre: GRE over IPv6 tunneling driver
[ 4506.363478][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4512.251523][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4517.307411][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4523.259387][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4617.880477][T28205] ping (28205) used greatest stack depth: 22672 bytes left