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Article #162

Re: IP-Chains and external access to internal network...HELP

#162
From: Anthony White
Date: Mon, 14 Feb 2000 00:00
46 lines
2226 bytes
Anthony White wrote:
> 
> This is getting to much...

Please read on...I have more info to the following.


> 
> After 17 kernel re-compiles, numerous tests,
> trial and error I can still not get people on
> the Internet onto my internal network:-(((
> 
> Here is the system:
> -------------------
> 
> A standard RedHat box set up as a firewall between
> an internal network (192.168.x.x) and an Internet
> IP address, using the "PmFirewall" scripts.

[...most snipped...]

> The "/lib/modules/2.2.13/ipv4/ip_masq_portfw.o" file does
> exist and can be loaded - is loaded.
> 
> This is the command used:
> 
>  /sbin/ipmasqadm portfw -f
>  /sbin/ipmasqadm portfw -a -P tcp -L inet_ip_addr 80 -R 192.168.5.9 80

When changing the above to 

   /sbin/ipmasqadm portfw -a -P tcp -L inet_ip_addr 4000 -R 192.168.5.9
80

 and then point my browser to "inet_ip_addr" all works!!!

In other words when using port 4000 to request www pages the thing gets
forwarded just fine.  This means that there must be a problem with
blocking
port 80 in my IpChains rules - but where???

> 
> This should forward the Internet IP, port 80 to the internal machine on
> 192.168.5.9, port 80.

It does not, see above...
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From: Anthony White <movielink@c031.aone.net.au>
Subject: Re: IP-Chains and external access to internal network...HELP
Date: 2000/02/14
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