[ 3422.545591][T31041] gre: GRE over IPv4 demultiplexor driver
[ 3423.744432][T31065] ip_gre: GRE over IPv4 tunneling driver
[ 3459.718034][T31639] ip6_gre: GRE over IPv6 tunneling driver
[ 3471.774036][T31838] ping (31838) used greatest stack depth: 22736 bytes left
[ 3484.481374][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3488.257296][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3491.458291][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3495.170284][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!