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SonicOS 5.8.1 Administrator Guide
NetFlow version 5 Flow Record Format
NetFlow version 9
An example of a NetFlow version 9 template is displayed below.
Bytes Contents Description
0-3 srcaddr Source IP address
4-7 dstaddr Destination IP address
8-11 nexthop IP address of the next hop router
12-13 input SNMP index of input interface
14-15 output SNMP index of output interface
10-19 dPkts Packets in the flow
20-23 dOctets Total number of Layer 3 bytes in the packets of the flow
24-27 First SysUptime at start of flow
28-31 Last SysUptime at the time the last packet of the flow was
received
32-33 srcport TCP/UDP source port number or equivalent
34-35 dstport TCP/UDP destination port number or equivalent
36 pad1 Unused (zero) bytes
37 tcp_flags Cumulative OR of TCP flags
38 prot IP protocol type (for example, TCP=6; UDP=17)
39 tos IP type of service (ToS)
40-41 src_as Autonomous system number of the source, either origin or
peer
42-43 dst_as Autonomous system number of the destination, either
origin or peer
44 src_mask Source address prefix mask bits
45 dst_mask Destination address prefix mask bits
46-47 pad2 Unused (zero) bytes