[ 3169.071987][T28987] gre: GRE over IPv4 demultiplexor driver
[ 3170.180074][T29011] ip_gre: GRE over IPv4 tunneling driver
[ 3174.030809][T29075] ping (29075) used greatest stack depth: 23840 bytes left
[ 3205.972664][T29583] ip6_gre: GRE over IPv6 tunneling driver
[ 3210.241507][  T830] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3212.673529][T17208] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3220.498204][T29834] ping (29834) used greatest stack depth: 23632 bytes left
[ 3229.825348][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3233.537351][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3236.673339][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3240.385341][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!