[ 4655.715607][T25569] gre: GRE over IPv4 demultiplexor driver
[ 4657.984661][T25592] ip_gre: GRE over IPv4 tunneling driver
[ 4723.870167][T26164] ip6_gre: GRE over IPv6 tunneling driver
[ 4752.677319][T26414] ping (26414) used greatest stack depth: 23248 bytes left
[ 4769.437780][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4776.029666][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4781.404653][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4788.125646][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4820.046342][T26982] ping (26982) used greatest stack depth: 22720 bytes left