[ 4368.780265][T29173] gre: GRE over IPv4 demultiplexer driver
[ 4370.420586][T29196] ip_gre: GRE over IPv4 tunneling driver
[ 4421.671920][T29768] ip6_gre: GRE over IPv6 tunneling driver
[ 4444.799381][T30017] ping (30017) used greatest stack depth: 23440 bytes left
[ 4458.273937][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4463.393834][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4467.809811][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4472.993783][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!