[ 1220.504941][T29951] gre: GRE over IPv4 demultiplexer driver
[ 1221.056071][T29974] ip_gre: GRE over IPv4 tunneling driver
[ 1237.715210][T30550] ip6_gre: GRE over IPv6 tunneling driver
[ 1243.503866][T30800] ping (30800) used greatest stack depth: 23072 bytes left
[ 1248.488345][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1250.536314][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1252.456315][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1254.568321][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!