[ 3220.986605][T22123] gre: GRE over IPv4 demultiplexer driver
[ 3222.717212][T22147] ip_gre: GRE over IPv4 tunneling driver
[ 3268.180984][T22720] ip6_gre: GRE over IPv6 tunneling driver
[ 3295.524397][T23070] ping (23070) used greatest stack depth: 23072 bytes left
[ 3295.942711][T12630] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3300.615525][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3305.351542][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3309.382573][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3314.182558][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!