[ 2847.553003][T23671] gre: GRE over IPv4 demultiplexer driver
[ 2849.080429][T23694] ip_gre: GRE over IPv4 tunneling driver
[ 2895.757299][T24265] ip6_gre: GRE over IPv6 tunneling driver
[ 2915.537035][T24515] ping (24515) used greatest stack depth: 22928 bytes left
[ 2927.662560][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2932.398505][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2936.558495][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2941.166514][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!