network cards falls into promiscuous mode :(

Guolin Cheng guolin at alexa.com
Tue Mar 30 01:44:25 UTC 2004


Hi, 

 Anyone has the same problem as me? I got two FC1 machines with upgraded kernel 2.4.22-1.2174.nptlsmp, the kernel reports that network falls into "promiscuous" mode. That's really annoying, thinking about 600 boxes falls into promiscuous at the same time.. :)  It assumes slower as well, right? and each one pokes into other's business. How the kernel guy has this ..... idea? 

 I recompile a new 2.4.25 kernel, turned off "multicast" related options, and then restart machine,  but the problem still keeps there.  Any one know how to turn off this "feature", either though kernel recompiling, or on-line change it through /proc/net/* or /etc/sysctl.conf?

 Thanks.
 --Guolin Cheng

 hello06.example.com user1 148% uname -a
Linux hello06.example.com 2.4.22-1.2174.nptlsmp #1 SMP Wed Feb 18 16:21:50 EST 2004 i686 i686 i386 GNU/Linux
hello06.alexa.com guolin 149% dmesg | tail -5
ip_tables: (C) 2000-2002 Netfilter core team
tg3: eth0: Link is up at 100 Mbps, full duplex.
tg3: eth0: Flow control is off for TX and off for RX.
device eth0 entered promiscuous mode
Installing knfsd (copyright (C) 1996 okir at monad.swb.de).





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