[ 4454.030419][T26302] gre: GRE over IPv4 demultiplexor driver [ 4456.092011][T26325] ip_gre: GRE over IPv4 tunneling driver [ 4482.226450][T26577] ping (26577) used greatest stack depth: 23664 bytes left [ 4516.130301][T26896] ip6_gre: GRE over IPv6 tunneling driver [ 4542.380733][T27146] ping (27146) used greatest stack depth: 23616 bytes left [ 4557.911550][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4563.735436][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4568.662420][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4574.422488][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4724.230564][T28852] ping (28852) used greatest stack depth: 23056 bytes left