SIOCADDRT: invalid argument

["Allan T. Parreno" <allan hopper iloilo fapenet org>]

hi,

Im using a redhat 6.0, I do an ip aliasing and when i issue a command
/sbin/route add -net 192.168.1.0 dev eth0:0 got this error "SIOCADDRT:
invalid argument", whats worng?  Here's my complete command:

#ip aliasing
/sbin/ifconfig eth0:0 192.168.1.1 netmask 255.255.255.0 up
/sbin/route add -net 192.168.1.0 dev eth0:0 --> error

#ipchains 
/sbin/ipchains -P forward Deny
/sbin/ipchains -A forward -j MASQ -s 192.168.1.0/24 -d 0.0.0.0/0

#services
/sbin/depmod -a
/sbin/modprobe ip_masq_irc
/sbin/modprobe ip_masq_ftp

All workstation cant connect to IRC(internet Chat Relay) or ICQ.

Before, in Redhat 5.2 everything works fine aside from ipchains, it was
ipfwadm. 

Any idea or suggestion?

thanks in advance.  
 
-----
alpar