, — !
, , . . , Fortigate 5.6+, «diagnose debug flow» — . . , , RFC1918, . VXLAN ...15, ...254, VTEP.
VXLAN- . overlay ARP OVSDB, underlay ARP CAM. Fortigate VXLAN FDB OVSDB. :
fortigate (root) #diag sys vxlan fdb list vxlan-LS
mac=00:50:56:8f:3f:5a state=0x0002 flags=0x00 remote_ip=...47 port=4789 vni=5008 ifindex=7
— MAC VTEP ...47. ESXI , , MAC , VTEP . CAM/ARP — ESXI :
fortigate (root) #get sys arp | grep ...47
...47 0 00:50:56:65:f6:2c dmz
— ? Juniper' — , — VLAN VTEP . DLR-, VDR — ESXI , VMWare. MAC «97:6e» , vmnic1 — , VTEP ...47 "--dir 2":
pktcap-uw --uplink vmnic1 --vni 5008 --mac 90:6c:ac:a9:97:6e --dir 2 -o /tmp/monitor.pcap

— ARP . ARP . , ...15 — ICMP ? , . , ( teaming policy), vNIC , , :
pktcap-uw --uplink vmnic4 --vni 5008 --mac 90:6c:ac:a9:97:6e --dir 2 -o /tmp/monitor.pcap

, . . — — VDR, . , , , . «» Ethernet underlay. - MAC VTEP IP. , , — , . ARP , . Ethernet :
fortigate (root) #get sys arp | grep ...47
...47 0 00:50:56:65:f6:2c dmz
fortigate (root) #get sys arp | grep ...42
...42 0 00:50:56:6a:78:86 dmz