[ 4442.812265][T26000] gre: GRE over IPv4 demultiplexor driver
[ 4444.839873][T26023] ip_gre: GRE over IPv4 tunneling driver
[ 4471.556043][T26276] ping (26276) used greatest stack depth: 23680 bytes left
[ 4506.574637][T26595] ip6_gre: GRE over IPv6 tunneling driver
[ 4533.336985][T26845] ping (26845) used greatest stack depth: 23600 bytes left
[ 4549.244133][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4555.261030][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4560.253013][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4566.140014][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!