[ 3346.967203][T31566] gre: GRE over IPv4 demultiplexor driver
[ 3348.138985][T31589] ip_gre: GRE over IPv4 tunneling driver
[ 3383.360191][T32166] ip6_gre: GRE over IPv6 tunneling driver
[ 3397.735784][T32415] ping (32415) used greatest stack depth: 21824 bytes left
[ 3400.488524][T22444] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3407.081409][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3410.728396][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3413.929403][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3417.577400][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!