[ 4382.758844][T26045] gre: GRE over IPv4 demultiplexor driver
[ 4384.688070][T26068] ip_gre: GRE over IPv4 tunneling driver
[ 4410.163854][T26324] ping (26324) used greatest stack depth: 23184 bytes left
[ 4442.987599][T26645] ip6_gre: GRE over IPv6 tunneling driver
[ 4449.824151][T26706] ping (26706) used greatest stack depth: 22992 bytes left
[ 4483.506299][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4489.138243][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4493.938214][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4499.635216][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!