[ 3224.433431][T23675] gre: GRE over IPv4 demultiplexer driver
[ 3226.115889][T23698] ip_gre: GRE over IPv4 tunneling driver
[ 3274.913280][T24271] ip6_gre: GRE over IPv6 tunneling driver
[ 3295.803078][T24520] ping (24520) used greatest stack depth: 23552 bytes left
[ 3308.703683][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3313.567578][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3317.726623][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3322.591607][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!