[ 4767.211792][T24598] gre: GRE over IPv4 demultiplexor driver
[ 4769.490341][T24621] ip_gre: GRE over IPv4 tunneling driver
[ 4835.121710][T25195] ip6_gre: GRE over IPv6 tunneling driver
[ 4857.628096][T25395] ping (25395) used greatest stack depth: 22384 bytes left
[ 4879.875016][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4886.146902][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4891.457917][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4897.601902][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!