[ 1692.065086][T15471] gre: GRE over IPv4 demultiplexer driver
[ 1692.566193][T15494] ip_gre: GRE over IPv4 tunneling driver
[ 1700.747904][T15842] ping (15842) used greatest stack depth: 23136 bytes left
[ 1709.432790][T16067] ip6_gre: GRE over IPv6 tunneling driver
[ 1716.434404][T16363] ping (16363) used greatest stack depth: 22992 bytes left
[ 1720.557428][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1722.670376][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1724.589383][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1726.702377][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!