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RE: [K12OSN] Checking for iptables - ipchains vs. iptables

I don't know enough about the TCP/IP stack in Linux to tweak with it.  I
was just following the troubleshooting guide at:


-----Original Message-----
From: k12osn-admin redhat com [mailto:k12osn-admin redhat com] On Behalf
Of Eric Harrison
Sent: Saturday, June 01, 2002 10:28 PM
To: k12osn redhat com
Subject: Re: [K12OSN] Checking for iptables

Red Hat 7.3, which K12LTSP 2.1.0 is based on, uses ipchains by default.
You can't use iptables and ipchains at the same time. 

You probably will want to stick with the default ipchains rules unless
you know exactly what you're doing.


On Sat, 1 Jun 2002, Greg Long wrote:

>Well, I have narrowed down the problem:
>[root server root]# iptables -L -v
>init_module: Device or resource busy
>Hint: insmod errors can be caused by incorrect module parameters, 
>including invalid IO or IRQ parameters
>/lib/modules/2.4.18-3/kernel/net/ipv4/netfilter/ip_tables.o: insmod 
>/lib/modules/2.4.18-3/kernel/net/ipv4/netfilter/ip_tables.o failed
>/lib/modules/2.4.18-3/kernel/net/ipv4/netfilter/ip_tables.o: insmod 
>ip_tables failed iptables v1.2.5: can't initialize iptables table 
>`filter': iptables who? (do you need to insmod?)
>Perhaps iptables or your kernel needs to be upgraded.
>[root server root]#
>Again on the stock 2.1.0 install - BETA8.
>Soo...what could cause iptables not to be set up right? I notice the IP

>range it hands out to clients is in the 192.168.0.x range....my Linksys

>BEFSR41 router hands out IP addresses to clients (which would be eth1
>here) are 192.168.1.x....no conflict there.  Or is there?  Does the 
> IP it gets handed cause an issue?
>Greg Long

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