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Old 09-20-2001, 09:55 AM   #1
cybercop12us
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Registered: Aug 2001
Posts: 60

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Question how to setup a ipchains firewall after a hardware cisco router


hai friends,

i want to setup a ipchains firewall after a
cisco router which doesnot has a inbuilt firewall with it. i will
try to explain the situation

the cisco router has a wan interface and a lan
interface and from the lan interface we get some 14 public lan
ips.

i want to have a setup in which i want to connect one of the two interfaces of my linux box with the routers public
lan interface and from second interface of linux box the 14
public lan ips should come.

can anybody please suggest me the idea. actually
i had setup a netguard firewall in the above fashion . can i setup
ipchains in the in the same fashion.

if anybody wants more details i can send u the setup of
netguard firewall

thanks in advance
harish
 
Old 09-20-2001, 01:28 PM   #2
php
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Registered: Jun 2001
Location: USA
Distribution: Slackware
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set the ipchains on the main server after the router installed of on every individual machine. if you dont know how to do ipchains than there is a lot of online resources that can explain it easily
 
Old 09-21-2001, 04:53 AM   #3
cybercop12us
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Registered: Aug 2001
Posts: 60

Original Poster
Rep: Reputation: 15
Smile thank u but

hai hacker

thanks for the reply, yes i know to setup a ipchains
firewall. but the problem is see for eg. the cisco route
has two interfaces one wan interface and one lan interface
. from the lan interface we get some 14 ipaddresses by using
a subnet of 240. so i want to connect one of the two interfaces
in my ipchains machine to router's public lan interface, and from
another interface of my ipchains box i want to get the 14 ips
i will explain to u with an ascii dia

setup before ipchains:
----------------------------

---------| ---------
| |cisco public
|Internet----- |router --------------HUB------14ipaddresses
| | lan inter
---------- |--------

setup after ipchains:
-------------------------
---------| ---------
| |cisco public
|Internet----- |router --------------ipchains---- HUB------14ipaddrs
| | lan inter box
---------- |--------

thanks in advance
harish
 
  


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