[ 2635.091252][T21095] gre: GRE over IPv4 demultiplexer driver
[ 2636.720928][T21118] ip_gre: GRE over IPv4 tunneling driver
[ 2683.743623][T21690] ip6_gre: GRE over IPv6 tunneling driver
[ 2703.854411][T21939] ping (21939) used greatest stack depth: 23464 bytes left
[ 2716.213599][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2720.949510][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2724.982470][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2729.781499][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!