[ 3247.801470][T23679] gre: GRE over IPv4 demultiplexer driver
[ 3249.416283][T23702] ip_gre: GRE over IPv4 tunneling driver
[ 3296.888708][T24273] ip6_gre: GRE over IPv6 tunneling driver
[ 3324.279354][T24616] ping (24616) used greatest stack depth: 23552 bytes left
[ 3329.387608][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3334.123530][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3338.282554][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3343.018561][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!