[ 1322.505479][T31840] gre: GRE over IPv4 demultiplexer driver
[ 1323.063909][T31863] ip_gre: GRE over IPv4 tunneling driver
[ 1329.040281][T32115] ping (32115) used greatest stack depth: 23408 bytes left
[ 1339.944583][T32434] ip6_gre: GRE over IPv6 tunneling driver
[ 1346.249509][  T617] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1351.266328][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1353.378337][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1355.298341][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1357.410346][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1378.978265][ T1305] ping (1305) used greatest stack depth: 23376 bytes left