create packet-generator interface pg0 create packet-generator interface pg1 set int ip address pg1 192.168.2.1/24 set ip arp pg1 192.168.2.2 6:5:4:3:2:1 static create gre tunnel dst 192.168.2.2 src 192.168.2.1 teb set int state pg0 up set int state pg1 up set int state gre0 up set int l2 xconnect pg0 gre0 set int l2 xconnect gre0 pg0 packet-generator new { name tx limit -1 node ethernet-input size 64-64 interface pg0 data { 0x8881: 4:4:4:4:4:4 -> 5:5:5:5:5:5 incrementing 100 } } packet-generator new { name rx limit -1 node ip4-input size 72-72 interface pg1 data { GRE: 192.168.2.2 -> 192.168.2.1 teb 0x8881: 4:4:4:4:4:4 -> 5:5:5:5:5:5 incrementing 100 } } packet-generator enable