[ 4428.723239][T29158] gre: GRE over IPv4 demultiplexer driver
[ 4430.418091][T29181] ip_gre: GRE over IPv4 tunneling driver
[ 4478.858316][T29755] ip6_gre: GRE over IPv6 tunneling driver
[ 4503.372077][T29657] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 4512.203861][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4517.068059][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4521.227868][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4526.091903][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!