[ 3394.306313][T31433] gre: GRE over IPv4 demultiplexor driver
[ 3395.489155][T31457] ip_gre: GRE over IPv4 tunneling driver
[ 3431.536655][T32031] ip6_gre: GRE over IPv6 tunneling driver
[ 3446.886398][T32282] ping (32282) used greatest stack depth: 23568 bytes left
[ 3447.345707][T26250] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3456.690244][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3460.593242][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3463.986253][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3467.825235][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!