[ 1599.081472][ T1099] gre: GRE over IPv4 demultiplexer driver
[ 1599.594443][ T1122] ip_gre: GRE over IPv4 tunneling driver
[ 1615.710913][ T1693] ip6_gre: GRE over IPv6 tunneling driver
[ 1623.606938][ T2040] ping (2040) used greatest stack depth: 23200 bytes left
[ 1626.503336][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1628.550312][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1630.470306][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1632.518322][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!