[ 3138.796288][T23679] gre: GRE over IPv4 demultiplexer driver
[ 3140.400707][T23702] ip_gre: GRE over IPv4 tunneling driver
[ 3189.207182][T24275] ip6_gre: GRE over IPv6 tunneling driver
[ 3210.066211][T24524] ping (24524) used greatest stack depth: 23632 bytes left
[ 3217.653433][T24618] ping (24618) used greatest stack depth: 23552 bytes left
[ 3222.852398][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3227.716361][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3231.876334][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3236.741313][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3314.339193][T25750] ping (25750) used greatest stack depth: 23040 bytes left