[ 4643.617785][T25558] gre: GRE over IPv4 demultiplexor driver
[ 4646.045550][T25582] ip_gre: GRE over IPv4 tunneling driver
[ 4715.007924][T26162] ip6_gre: GRE over IPv6 tunneling driver
[ 4744.978538][T26412] ping (26412) used greatest stack depth: 23472 bytes left
[ 4762.794632][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4769.386546][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4775.082545][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4781.930574][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!