[ 3174.395169][T22573] gre: GRE over IPv4 demultiplexor driver
[ 3176.516545][T22597] ip_gre: GRE over IPv4 tunneling driver
[ 3237.205406][T23170] ip6_gre: GRE over IPv6 tunneling driver
[ 3278.829625][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3284.717489][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3289.646478][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3295.534494][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!