[ 4411.700831][T29673] gre: GRE over IPv4 demultiplexer driver
[ 4413.329032][T29696] ip_gre: GRE over IPv4 tunneling driver
[ 4462.448577][T30268] ip6_gre: GRE over IPv6 tunneling driver
[ 4478.908026][T30468] ping (30468) used greatest stack depth: 23120 bytes left
[ 4483.470977][T23271] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 4491.086941][T23271] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 4495.759835][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4500.622896][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4504.847851][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4509.774909][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!