netmap error (Unable to get if info for eth1)

Tahir Rauf tahir.rauf1 at
Tue Feb 19 05:51:56 UTC 2013

Hi all,

I am giving netmap a try and have tested it on my Realtech and Intel 1G
NICs (by using r8169 and e1000e kernel modules), and it is working fine.

However, I am facing problem while running it on my intel 10G NIC (82598EB
10-Gigabit AF Dual Port Network Connection). Whenever, I run the pkt-gen
example with 10G interface, it shows me following error

sudo ./pkt-gen -i eth1 -f tx -l 60
extract_ip_range [119] extract IP range from
extract_ip_range [129] starts at
extract_ip_range [119] extract IP range from
extract_ip_range [129] starts at
extract_mac_range [135] extract MAC range from 00:1b:21:ce:f3:6a
extract_mac_range [150] 00:1b:21:ce:f3:6a starts at 0:1b:21:ce:f3:6a
extract_mac_range [135] extract MAC range from ff:ff:ff:ff:ff:ff
extract_mac_range [150] ff:ff:ff:ff:ff:ff starts at ff:ff:ff:ff:ff:ff
main [1053] map size is 207712 Kb
main [1059] Unable to get if info for eth1
main [1066] bad nthreads 1, have 0 queues
main [1075] mmapping 207712 Kbytes
main [1094] Unable to register interface eth1
Sending on eth1: 0 queues, 1 threads and 1 cpus. -> (00:1b:21:ce:f3:6a -> ff:ff:ff:ff:ff:ff)
main [1128] Wait 2 secs for phy reset
main [1130] Ready...
main [1181] Unable to register eth1
main [1242] 0 pps
Sent 0 packets, 60 bytes each, in 0.00 seconds.

Any idea that what's going wrong here?


Tahir Rauf
(+92) 312-7767761
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