[ 1815.277825][T17638] gre: GRE over IPv4 demultiplexer driver
[ 1815.786123][T17661] ip_gre: GRE over IPv4 tunneling driver
[ 1821.815077][T17913] ping (17913) used greatest stack depth: 23136 bytes left
[ 1832.855448][T18240] ip6_gre: GRE over IPv6 tunneling driver
[ 1837.700844][T18439] ping (18439) used greatest stack depth: 23024 bytes left
[ 1844.008059][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1846.121014][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1848.040049][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1850.153015][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!