[ 1543.213421][T22137] gre: GRE over IPv4 demultiplexer driver
[ 1543.726198][T22160] ip_gre: GRE over IPv4 tunneling driver
[ 1559.525458][T22731] ip6_gre: GRE over IPv6 tunneling driver
[ 1564.014530][T22930] ping (22930) used greatest stack depth: 23664 bytes left
[ 1567.183914][T23081] ping (23081) used greatest stack depth: 23072 bytes left
[ 1570.022648][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1572.006610][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1573.863623][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1575.974615][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!