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Routing trouble between multiple networks

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http://www.unix.com – Hi everyone, Hopefully there is someone here that can help me with the problem I got. At my office I have 1 ubuntu firewall/gateway and several networks. On the firewall/gateway I have three network cards, one for internet, one for network 192.168.100.0 and one for network 172.20.1.0 We use fwbuilder to make the firewall rules and have there defined the three network cards and the two networks. The configuration in /etc/network/interfaces looks like this: Code: # This file describes the network interfaces available on your system # and how to activate them. For more infor (HowTos)

robot1's picture
Submitted by robot1 on 08/23/2012

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Dear all,

Please help me to solve the below problem.

Scenario : I'm the system admin here and we have 2 networks connected by VPN with 2 ranges as follows. our local network is :192.168.2.0 range remote network is : 192.168.1.0 range Local network gateway is : 192.168.2.100 remote network gateway is :192.168.1.100 Connected to Internet by router gateway : 192.168.2.50 The two networks

I'm trying to test a network device (firewall) using a Linux box, with two network cards, one interface connected to the WAN zone and another interface to LAN zone.

The configuration is similar with that

|ETH0| <-> | FW | <-> ETH1

So from both interfaces I'm able to ping the respective firewall interface.

I've set up a virtual lab network in vmware with two network.

Windows 2008 firewall config 1 year 30 weeks ago

Is there any way to add a firewall rule that essentially says, "deny if remoteip= and localport DOES NOT EQUAL ?

I have a network interface connected to a shared network and on that network I only want one TCP port available. But the server is connected to multiple private networks so the private network firewall profile is insufficient here.

So here's the scenario: Network A is the physical network (10.1.1.x 255.0.0.0) which is connected to the internet via the gateway at 10.1.1.1. Network B is a 'virtual' (VMWare Workstation) network using the IP range 172.16.0.0 255.255.255.0 and the VMware DHCP server.

The goal is to create a virtualized network on Network B that can be routed to directly from Network A, but only through a virtual

I would like to do some configuration through Zentyal or a similar setup, but I am also willing to use config files.

I am connecting to a commercial VPN using a username and password.

So... I'm having some bizarre issues trying to set up a host-only network with multiple VMs accessible from the host.

Just for reference... if I set up say 5 VMs running various 'appliances' and/or distros on the internal network 'intnet', configuring one of them as a gateway/firewall server (providing DHCP), and one of them as a desktop OS with web browser, etc. I get *almost* what I want.

This is the first time I am faced with routing and it seems I have hit a dead end.

I want to set up internet gateway for my home to make use of my old system having lubuntu on it .. pc only having 1 network interface card ... so how i can use it for internet gateway i mean obviously this pc will be forwarding internet traffic to other pc's ... Just want to know how i can use single nic for gateway instead of two .:confused:..