[ 4322.478685][T20382] gre: GRE over IPv4 demultiplexor driver
[ 4324.584771][T20405] ip_gre: GRE over IPv4 tunneling driver
[ 4386.126506][T20980] ip6_gre: GRE over IPv6 tunneling driver
[ 4430.259465][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4436.339389][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4441.395388][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4447.347397][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4659.834362][T23495] ping (23495) used greatest stack depth: 22368 bytes left