RedHat ifcfg-eth1 promisc

metallica1973 · 01-13-2011, 09:42 AM

what entry do I have to add to my ifcg-eth1 file to put the "nic" in promiscuous mode?

PHP Code:



# Intel Corporation 82545EM Gigabit Ethernet Controller (Copper) 
DEVICE=eth1 
HWADDR=00:00:00:00:00:00 
ONBOOT=no 
HOTPLUG=no

should I add PROMISC=ON

??

szboardstretcher · 01-13-2011, 09:48 AM

ifconfig eth1 promisc

---------- Post added 01-13-11 at 10:49 AM ----------

Quote:

Originally Posted by metallica1973

should I add PROMISC=ON
??

I think it would be PROMISC=YES

But, I dont think that works.

acid_kewpie · 01-13-2011, 10:02 AM

Why do you need to? Libpcap and the likes enable it on demand for whatever apps use it. You're surely not need promisc unless a specific service wants it.

metallica1973 · 01-13-2011, 01:02 PM

I am using Ntop to monitor segments of our network and before I start Ntop I have to manually do a

PHP Code:



ifconfig eth1 promisc

everytime. Using

PHP Code:



ntop -i eth1 -u root

doesnt put the nic in promiscous mode so I have to do it manually.

Thanks for the reply.