Hi , I am using Softflowd IPFIX supported version ( Revision : 80aac3b2fec3 ) downloaded from google code. I export flows in IPFIX format to collector server ( NFDUMP 1.6.10 ) . I am seeing issue with date and time field when I am reading nfdump logs . Whereas In case of Netflow v5 and v9 it is working fine means proper date and time comes in nfdump logs. Command run : softflowd -i eth3 -n 192.168.50.2:9995 -v 10 -d -t maxlife=30 -D -A milli nfdump log : $ nfdump -r nfcapd.201408280909 Date first seen Duration Proto Src IP Addr:Port Dst IP Addr:Port Packets Bytes Flows 2005-04-02 04:35:37.968 1970-01-01 05:30:00.000 3182570558.032 TCP 192.168.50.1:43241 -> 192.168.50.2:5001 .AP.SF 0 17405 823.5 M 1 2005-04-02 04:35:37.968 1970-01-01 05:30:00.000 3182570558.032 TCP 192.168.50.2:5001 -> 192.168.50.1:43241 .A..SF 0 15470 711626 1 2005-04-02 04:35:37.968 1970-01-01 05:30:00.000 3182570558.032 TCP 192.168.50.1:43242 -> 192.168.50.2:5001 .AP.SF 0 20138 928.1 M 1 2005-04-02 04:35:37.968 1970-01-01 05:30:00.000 3182570558.032 TCP 192.168.50.2:5001 -> 192.168.50.1:43242 .A..SF 0 20814 957450 1 2005-04-02 04:35:37.967 1970-01-01 05:30:00.000 3182570558.033 TCP 192.168.50.1:43243 -> 192.168.50.2:5001 .AP.SF 0 20031 925.8 M 1 ....... 2015-06-17 11:04:55.259 1970-01-01 05:30:00.000 2860448000.741 TCP 192.168.50.1:43257 -> 192.168.50.2:5001 .AP.SF 0 7235 348.3 M 1 2015-06-17 11:04:55.259 1970-01-01 05:30:00.000 2860448000.741 TCP 192.168.50.2:5001 -> 192.168.50.1:43257 .A..SF 0 10138 466354 1 2015-06-17 11:04:55.248 1970-01-01 05:30:00.000 2860448000.752 TCP 192.168.50.1:43258 -> 192.168.50.2:5001 .AP.SF 0 13164 610.1 M 1 2015-06-17 11:04:55.248 1970-01-01 05:30:00.000 2860448000.752 TCP 192.168.50.2:5001 -> 192.168.50.1:43258 .A..SF 0 15663 720504 1 ....... 2016-01-02 07:16:04.432 1970-01-01 05:30:00.000 2843268131.568 TCP 192.168.50.2:5001 -> 192.168.50.1:43268 .A..SF 0 18639 857400 1 2016-01-02 07:16:04.421 1970-01-01 05:30:00.000 2843268131.579 TCP 192.168.50.1:43269 -> 192.168.50.2:5001 .AP.SF 0 28301 1.3 G 1 2016-01-02 07:16:04.421 1970-01-01 05:30:00.000 2843268131.579 TCP 192.168.50.2:5001 -> 192.168.50.1:43269 .A..SF 0 34656 1.6 M 1 2016-01-02 07:16:04.421 1970-01-01 05:30:00.000 2843268131.579 TCP 192.168.50.1:43270 -> 192.168.50.2:5001 .AP.SF 0 29209 1.3 G 1 .... Summary: total flows: 162, total bytes: 59.4 G, total packets: 2.6 M, avg bps: 0, avg pps: 0, avg bpp: 0 Time window: 2014-08-28 09:09:31 - 2014-08-28 09:14:31 Total flows processed: 162, Blocks skipped: 0, Bytes read: 9832 Sys: 0.005s flows/second: 27009.0 Wall: 0.005s flows/second: 30291.7 I also used sec with –A option but in that case also same problem persist. I attached tcpdump pcap file also. Pls find attachment. Can anybody know why it’s happening ? Regards Varun