[ 4417.519082][T20574] gre: GRE over IPv4 demultiplexor driver
[ 4419.588129][T20597] ip_gre: GRE over IPv4 tunneling driver
[ 4480.391205][T21175] ip6_gre: GRE over IPv6 tunneling driver
[ 4521.775815][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4527.535704][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4532.527708][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4538.479823][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!