[ 1553.797620][ T2308] gre: GRE over IPv4 demultiplexer driver
[ 1554.281284][ T2331] ip_gre: GRE over IPv4 tunneling driver
[ 1571.246670][ T2909] ip6_gre: GRE over IPv6 tunneling driver
[ 1578.290456][ T3202] ping (3202) used greatest stack depth: 23008 bytes left
[ 1582.445912][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1584.557878][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1586.476881][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1588.588879][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!