comment { overlay interface } create packet-generator interface pg0 set int ip address pg0 192.168.1.1/24 set int ip address pg0 192:168:1::1/64 set ip arp pg0 192.168.1.2 1:2:3:4:5:6 static set ip6 neighbor pg0 192:168:1::2 1:2:3:4:5:6 static set int state pg0 up comment { underlay interface } create packet-generator interface pg1 set int ip address pg1 192.168.2.1/24 set int ip address pg1 192:168:2::1/64 set ip arp pg1 192.168.2.2 6:5:4:3:2:1 static set ip6 neighbor pg1 192:168:2::2 6:5:4:3:2:1 static set int state pg1 up comment { gre4 over ipv6 } create gre tunnel dst 192:168:2::2 src 192:168:2::1 set int ip address gre0 127.1.0.1/32 ip route add 192.168.3.0/24 via gre0 set int state gre0 up comment { gre6 over ipv4 } create gre tunnel dst 192.168.2.2 src 192.168.2.1 set int ip address gre1 ::2/128 ip route add 192:168:3::0/64 via gre1 set int state gre1 up packet-generator new { name gre4-tx limit -1 node ip4-input size 64-64 interface pg0 data { UDP: 192.168.1.2 -> 192.168.3.1 UDP: 4321 -> 1234 length 128 checksum 0 incrementing 1 } } packet-generator new { name gre4-rx limit -1 node ip6-input size 72-72 interface pg1 data { GRE: 192:168:2::2 -> 192:168:2::1 ip4 UDP: 192.168.3.1 -> 192.168.1.2 UDP: 1234 -> 4321 length 128 checksum 0 incrementing 1 } } packet-generator new { name gre6-tx limit -1 node ip6-input size 64-64 interface pg0 data { UDP: 192:168:1::2 -> 192:168:3::1 UDP: 4321 -> 1234 length 128 checksum 0 incrementing 1 } } packet-generator new { name gre6-rx limit -1 node ip4-input size 72-72 interface pg1 data { GRE: 192.168.2.2 -> 192.168.2.1 ip6 UDP: 192:168:3::1 -> 192:168:1::2 UDP: 1234 -> 4321 length 128 checksum 0 incrementing 1 } } packet-generator enable