[ 1644.388794][T30436] gre: GRE over IPv4 demultiplexer driver
[ 1645.014455][T30459] ip_gre: GRE over IPv4 tunneling driver
[ 1663.424353][T31030] ip6_gre: GRE over IPv6 tunneling driver
[ 1670.088741][T31280] ping (31280) used greatest stack depth: 23072 bytes left
[ 1675.632346][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1677.872318][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1679.920279][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1682.160283][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!