[ 1536.912973][T25931] gre: GRE over IPv4 demultiplexer driver
[ 1537.460517][T25961] ip_gre: GRE over IPv4 tunneling driver
[ 1554.161055][T26532] ip6_gre: GRE over IPv6 tunneling driver
[ 1565.273198][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1567.321099][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1569.241119][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1571.353289][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!