[ 4326.896947][T29175] gre: GRE over IPv4 demultiplexer driver
[ 4328.633693][T29198] ip_gre: GRE over IPv4 tunneling driver
[ 4380.532538][T29769] ip6_gre: GRE over IPv6 tunneling driver
[ 4416.093132][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4421.149046][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4425.373098][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4430.365085][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4511.819166][T31249] ping (31249) used greatest stack depth: 23024 bytes left