[ 2615.506497][T19283] gre: GRE over IPv4 demultiplexor driver
[ 2617.289418][T19306] ip_gre: GRE over IPv4 tunneling driver
[ 2671.452944][T19877] ip6_gre: GRE over IPv6 tunneling driver
[ 2690.378724][T20077] ping (20077) used greatest stack depth: 22224 bytes left
[ 2709.324905][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2714.509837][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2718.925834][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2724.236835][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!