[ 4653.937516][T24440] gre: GRE over IPv4 demultiplexor driver
[ 4656.213341][T24463] ip_gre: GRE over IPv4 tunneling driver
[ 4724.267663][T25037] ip6_gre: GRE over IPv6 tunneling driver
[ 4732.372532][T25099] ping (25099) used greatest stack depth: 23376 bytes left
[ 4771.888349][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4778.288488][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4783.728253][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4790.384290][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!