[ 3302.173098][T28651] gre: GRE over IPv4 demultiplexor driver
[ 3303.368280][T28675] ip_gre: GRE over IPv4 tunneling driver
[ 3338.438143][T29250] ip6_gre: GRE over IPv6 tunneling driver
[ 3352.868699][T29499] ping (29499) used greatest stack depth: 21824 bytes left
[ 3362.301446][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3366.013359][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3369.086353][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3372.605356][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!