[ 4335.390190][T29191] gre: GRE over IPv4 demultiplexer driver
[ 4337.050471][T29214] ip_gre: GRE over IPv4 tunneling driver
[ 4386.185642][T29792] ip6_gre: GRE over IPv6 tunneling driver
[ 4407.407995][T30048] ping (30048) used greatest stack depth: 23440 bytes left
[ 4420.657332][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4425.840277][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4430.192230][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4435.376296][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!