[ 4179.237750][T22984] gre: GRE over IPv4 demultiplexer driver
[ 4180.898180][T23007] ip_gre: GRE over IPv4 tunneling driver
[ 4228.481082][T23578] ip6_gre: GRE over IPv6 tunneling driver
[ 4261.568605][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4266.368572][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4270.592573][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4275.457530][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4345.174141][T24957] ping (24957) used greatest stack depth: 23536 bytes left
[ 4449.459053][T26194] ping (26194) used greatest stack depth: 23424 bytes left