[ 4701.284062][T25559] gre: GRE over IPv4 demultiplexor driver
[ 4703.500488][T25582] ip_gre: GRE over IPv4 tunneling driver
[ 4772.428851][T26159] ip6_gre: GRE over IPv6 tunneling driver
[ 4802.721690][T26409] ping (26409) used greatest stack depth: 23472 bytes left
[ 4820.306763][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4826.706671][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4832.275672][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4838.931685][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!