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Network filtering question

Network filtering question

Network filtering question

I have this problem:

all devices mentioned are in the same subnet.

a PC is connected to a Cisco 2950 switch. Two firewalls, FW1 & FW2, are also connected to the same switch.

Is there a way to redirect ICMP traffic to FW2 and all other TCPIP traffice to FW1?

RE: Network filtering question

The layer-2 switch can't do it, so you will have to do it on the PC.
On the PC, you will need to use policy routing to filter and route according to protocol.
Some OSs support this, but not Windows.
Installing NetCat on the PC should allow you to do it.

RE: Network filtering question

Cool. I'll let my coworkers know and try it out.


RE: Network filtering question

NetCat doesn't say it will work on Windows. Have you successfully run it on that platform?

RE: Network filtering question

I was fairly sure there is a WINDOWS version of NetCat,

RE: Network filtering question

There is. My only problem now is trying to figure out the command list. Most of the readme files have a limited set of command and thier parameters.

RE: Network filtering question

Routing any amount of traffic through a Windows box usually isn't the best plan. Server 2008 is better than previous versions, but you really want a linux or BSD box doing routing, they have _much_ sturdier network stacks.

To do the type of routing you want you can just use iptables on any distro since 2.4

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