[ 1508.761104][T30082] gre: GRE over IPv4 demultiplexer driver
[ 1509.248025][T30105] ip_gre: GRE over IPv4 tunneling driver
[ 1525.798018][T30669] ip (30669) used greatest stack depth: 23480 bytes left
[ 1526.022844][T30677] ip6_gre: GRE over IPv6 tunneling driver
[ 1527.643150][T30739] ping (30739) used greatest stack depth: 23456 bytes left
[ 1531.932119][T30927] ping (30927) used greatest stack depth: 23136 bytes left
[ 1537.003504][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1539.116475][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1541.035484][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1543.148476][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1567.724857][T32166] ping (32166) used greatest stack depth: 22256 bytes left