[ 3840.387797][T21094] gre: GRE over IPv4 demultiplexor driver
[ 3842.022525][T21118] ip_gre: GRE over IPv4 tunneling driver
[ 3890.232498][T21691] ip6_gre: GRE over IPv6 tunneling driver
[ 3922.887380][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3927.623331][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3931.847295][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3936.519325][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!