dosemu breakes local network

[Serge Gavrilov <serge@SG3816.spb.edu>]

Hi!

I have the following problem. When I start dosemu in console mode my local
network breaks. I have network card which use IRQ9. I can recover normal state 
of network if I use

ifconfig arc0 down
/etc/init.d/network

when  dosemu has finished. In my dosemu/conf file I have the following string:

$_irqpassing = ""    

If anybody can helps me I will be very grateful.