[ 3231.308040][T28873] gre: GRE over IPv4 demultiplexor driver
[ 3232.648716][T28903] ip_gre: GRE over IPv4 tunneling driver
[ 3268.852957][T29475] ip6_gre: GRE over IPv6 tunneling driver
[ 3278.523516][T25931] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3293.115457][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3296.891326][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3300.155473][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3303.931338][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!