[ 3172.930890][T24821] gre: GRE over IPv4 demultiplexer driver
[ 3174.492369][T24845] ip_gre: GRE over IPv4 tunneling driver
[ 3174.941339][T24853] ip (24853) used greatest stack depth: 22720 bytes left
[ 3222.683576][T25416] ip6_gre: GRE over IPv6 tunneling driver
[ 3254.905843][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3259.640769][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3263.673768][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3268.408787][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!