[ 4378.509971][T20535] gre: GRE over IPv4 demultiplexor driver
[ 4380.551373][T20558] ip_gre: GRE over IPv4 tunneling driver
[ 4442.758828][T21131] ip6_gre: GRE over IPv6 tunneling driver
[ 4485.176357][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4491.065276][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4496.056290][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4501.944275][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!