[ 4264.690702][T29258] gre: GRE over IPv4 demultiplexer driver
[ 4266.340398][T29281] ip_gre: GRE over IPv4 tunneling driver
[ 4315.063592][T29854] ip6_gre: GRE over IPv6 tunneling driver
[ 4335.289656][T30104] ping (30104) used greatest stack depth: 22848 bytes left
[ 4335.701036][ T7539] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 4347.473923][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4352.145923][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4356.369932][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4361.104931][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!