[ 4325.502441][T20408] gre: GRE over IPv4 demultiplexor driver
[ 4327.719084][T20432] ip_gre: GRE over IPv4 tunneling driver
[ 4391.020876][T21007] ip6_gre: GRE over IPv6 tunneling driver
[ 4435.447374][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4441.399317][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4446.391341][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4452.599310][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4682.807679][T23612] ping (23612) used greatest stack depth: 22368 bytes left