[ 4476.823700][T22438] gre: GRE over IPv4 demultiplexor driver
[ 4478.978232][T22461] ip_gre: GRE over IPv4 tunneling driver
[ 4548.903824][T23043] ip6_gre: GRE over IPv6 tunneling driver
[ 4592.310606][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4598.262534][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4603.318559][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4609.271530][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!