[ 1538.102555][T18237] gre: GRE over IPv4 demultiplexer driver
[ 1538.651877][T18260] ip_gre: GRE over IPv4 tunneling driver
[ 1555.576130][T18831] ip6_gre: GRE over IPv6 tunneling driver
[ 1566.634733][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1568.745694][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1570.729708][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1572.842701][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!