[ 1504.918149][ T1827] gre: GRE over IPv4 demultiplexer driver
[ 1505.375211][ T1850] ip_gre: GRE over IPv4 tunneling driver
[ 1524.139781][ T2422] ip6_gre: GRE over IPv6 tunneling driver
[ 1529.149541][T31560] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1532.854445][T31560] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1532.858903][T31509] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1535.797397][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1537.974390][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1540.086387][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1542.198403][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1569.240496][ T3896] ping (3896) used greatest stack depth: 23456 bytes left