[ 4381.074389][T29181] gre: GRE over IPv4 demultiplexer driver
[ 4382.710563][T29204] ip_gre: GRE over IPv4 tunneling driver
[ 4431.484644][T29775] ip6_gre: GRE over IPv6 tunneling driver
[ 4465.214305][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4470.078218][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4474.303176][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4479.231187][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4552.723378][T31159] ping (31159) used greatest stack depth: 22608 bytes left