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Old 08-08-2003, 07:35 PM   #1
mylesridgely
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Firewall between router and external switch is it possible?

Is it possible to have a firewall, that just does packet filtering, between my Cisco router and my external switch? And if so does anyone know what it takes to make it work.

I have done the nat and pf stuff with no issues on openBSD3.3 but haven’t found any info on a packet filter for strictly external use only.


Thanks in advance.
 
Old 08-08-2003, 08:21 PM   #2
Half_Elf
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I'm not sure to understand.
You want to build a Linux box acting a firewall between your cisco router and your switch that is connected to the outside world?

Well it's not very hard, I guess a good iptables script will do the work. But maybe I don't understand the problem?
 
Old 08-08-2003, 08:26 PM   #3
mychl
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If you use iptables to create your firewall... iptables also does routing/port forwarding etc.... makes your firewall a router right...

Cisco Router Default Gateway -> Linux Firewall Server

Linux Firewall Server Default Gateway -> External Switch


Good luck...
 
Old 08-08-2003, 08:33 PM   #4
green_dragon37
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This was double posted here

http://www.linuxquestions.org/questi...threadid=80291
 
  


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