[ 1533.302599][T27781] gre: GRE over IPv4 demultiplexer driver
[ 1533.820106][T27804] ip_gre: GRE over IPv4 tunneling driver
[ 1549.823600][T28375] ip6_gre: GRE over IPv6 tunneling driver
[ 1560.424677][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1562.407648][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1564.264646][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1566.312651][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!