[ 3220.315693][T27873] gre: GRE over IPv4 demultiplexor driver
[ 3221.647082][T27903] ip_gre: GRE over IPv4 tunneling driver
[ 3258.089162][T28475] ip6_gre: GRE over IPv6 tunneling driver
[ 3282.535500][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3286.311355][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3289.575359][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3293.351361][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3415.906182][T31035] ping (31035) used greatest stack depth: 22928 bytes left