[ 3218.433422][T26212] gre: GRE over IPv4 demultiplexor driver
[ 3219.691526][T26237] ip_gre: GRE over IPv4 tunneling driver
[ 3232.054627][T26441] ping (26441) used greatest stack depth: 23200 bytes left
[ 3256.266506][T26810] ip6_gre: GRE over IPv6 tunneling driver
[ 3281.275516][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3285.370492][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3289.018481][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3293.114568][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!