[ 4403.860763][T22425] gre: GRE over IPv4 demultiplexor driver
[ 4405.867081][T22448] ip_gre: GRE over IPv4 tunneling driver
[ 4466.890803][T23022] ip6_gre: GRE over IPv6 tunneling driver
[ 4508.503654][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4514.199534][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4519.191526][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4525.015542][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!