[ 4379.974700][T29174] gre: GRE over IPv4 demultiplexer driver
[ 4381.633681][T29197] ip_gre: GRE over IPv4 tunneling driver
[ 4431.288652][T29776] ip6_gre: GRE over IPv6 tunneling driver
[ 4463.467970][T30119] ping (30119) used greatest stack depth: 23440 bytes left
[ 4468.777635][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4473.833545][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4479.081515][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4484.393520][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!