[ 1621.380012][T26204] gre: GRE over IPv4 demultiplexer driver
[ 1621.839031][T26228] ip_gre: GRE over IPv4 tunneling driver
[ 1638.639205][T26800] ip6_gre: GRE over IPv6 tunneling driver
[ 1644.667392][T27050] ping (27050) used greatest stack depth: 23184 bytes left
[ 1649.760446][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1651.807417][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1653.727495][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1655.840414][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!