NetFlow v5 Record Format

The following fields are recorded in the NetFlow-5 record type:

Name	Description	Offset	Field Length in Bytes
Source IPaddr	IP address of the device that sent the flow	0	4
Destination IPaddr	IP address of the destination device	4	4
Next hop router IP address	n/a	8	4
Inbound snmpIFindex	SNMP index number that identifies the Inbound interface on the PacketShaper: 1 Inside (built-in) 2 Outside (built-in) 3 Upper_Inside (upper LEM) or Right_Inside (right LEM) 4 Upper_Outside (upper LEM) or Right_Outside (right LEM) 5 Lower_Inside (lower LEM) or Left_Inside (left LEM) 6 Lower_Outside (lower LEM) or Left_Outside (left LEM)	12	2
Outbound snmpIFindex	SNMP index number that identifies the Outbound interface on the PacketShaper: 1 Inside (built-in) 2 Outside (built-in) 3 Upper_Inside (upper LEM) or Right_Inside (right LEM) 4 Upper_Outside (upper LEM) or Right_Outside (right LEM) 5 Lower_Inside (lower LEM) or Left_Inside (left LEM) 6 Lower_Outside (lower LEM) or Left_Outside (left LEM)	14	2
Packet Count	Number of packets in the flow	16	4
Byte Count	Total number of bytes in the flow	20	4
Time at Start of Flow	Value of SysUpTime when the first packet in the flow was seen (measured in milliseconds)	24	4
Time at End of Flow	Value of SysUpTime when the last packet in the flow was seen (measured in milliseconds)	28	4
Source Port	Port number of the device that the flow went out of	32	2
Destination Port	Port number of the device that the flow went to	34	2
One pad byte	n/a	36	1
TCP flags	Protocol state (URG=32, ACK=16, PSH=8, RST=4, SYN=2, FIN=1). For example, a value of 27 indicates the flow had a SYN, ACK, PUSH, and FIN (2+16+8+1=27).	37	1
Layer 4 Protocol	Type of layer 4 protocol. For example, ICMP=1, TCP=6, Telnet=14, UDP=17	38	1
IP Type of Service (ToS) / Diffserv	Value that designates special handling of traffic (precedence, delay, throughput, and reliability)	39	1
Source Autonomous Sys ID	n/a	40	2
Dest. Autonomous Sys ID	n/a	42	2
Source Mask Bits Count	n/a	44	1
Destination Mask Bits Count	n/a	45	1
Two Pad Bytes	n/a	46	2

Certain fields (those marked with n/a in the Description column above) are applicable to routers, but not PacketShapers. These fields will always have a value of zero (0) in the NetFlow v5 records from Packeteer.