[ 1598.501394][T28399] gre: GRE over IPv4 demultiplexer driver
[ 1598.963032][T28422] ip_gre: GRE over IPv4 tunneling driver
[ 1615.546044][T28997] ip6_gre: GRE over IPv6 tunneling driver
[ 1621.381279][T29246] ping (29246) used greatest stack depth: 23152 bytes left
[ 1623.507514][T29340] ping (29340) used greatest stack depth: 22608 bytes left
[ 1626.421620][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1628.532595][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1630.452586][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1632.565588][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!