[ 1220.300215][T29959] gre: GRE over IPv4 demultiplexer driver
[ 1220.830707][T29982] ip_gre: GRE over IPv4 tunneling driver
[ 1237.412621][T30553] ip6_gre: GRE over IPv6 tunneling driver
[ 1243.328485][T30802] ping (30802) used greatest stack depth: 23072 bytes left
[ 1248.362574][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1250.474541][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1252.395526][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1254.506534][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!