[ 3161.689409][T27753] gre: GRE over IPv4 demultiplexor driver
[ 3162.832595][T27777] ip_gre: GRE over IPv4 tunneling driver
[ 3199.686950][T28350] ip6_gre: GRE over IPv6 tunneling driver
[ 3220.650563][T28681] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3224.555417][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3228.267425][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3231.594432][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3235.434442][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3286.309932][T29741] ping (29741) used greatest stack depth: 22416 bytes left