[ 4445.313172][T23227] gre: GRE over IPv4 demultiplexer driver
[ 4446.973442][T23250] ip_gre: GRE over IPv4 tunneling driver
[ 4495.867460][T23826] ip6_gre: GRE over IPv6 tunneling driver
[ 4529.271702][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4534.264654][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4538.424622][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4543.223645][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!