[ 4810.208585][T24648] gre: GRE over IPv4 demultiplexor driver
[ 4812.539795][T24671] ip_gre: GRE over IPv4 tunneling driver
[ 4877.200030][T25242] ip6_gre: GRE over IPv6 tunneling driver
[ 4884.955250][T25304] ping (25304) used greatest stack depth: 23192 bytes left
[ 4921.976488][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4928.184425][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4933.369442][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4939.704418][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 5110.948856][T27287] ping (27287) used greatest stack depth: 23040 bytes left