[ 3217.504178][T23670] gre: GRE over IPv4 demultiplexer driver
[ 3219.120646][T23693] ip_gre: GRE over IPv4 tunneling driver
[ 3267.809245][T24266] ip6_gre: GRE over IPv6 tunneling driver
[ 3288.972082][T24522] ping (24522) used greatest stack depth: 23648 bytes left
[ 3301.728646][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3306.593518][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3310.816533][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3315.681523][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!