Migrating 3 networks from Linux to ASA 5506

[bcheing01]

Hello, I have the following situation:

1. Network1: 192.168.1.0/24 gateway 192.168.1.2

2. Netwotk2: 192.168.2.0/24 gateway 192.168.2.2

3. Network3: 192.168.3.0/24 gateway 192.168.3.2

4. Linux box with the inside NIC with 3 interfaces: 192.168.1.2/24, 192.168.2.2/24, 192.168.3.2/24

5. Switch1 connected to the Linux box

6. Switch2 connected to switch 1 via RJ45

7. Switch3 connected to switch 2 via RJ45

8. 10 Other switches connected in different ways

9. All switches have a mix of networks, so there is no physical segregation of networks/switches.

I am tasked with replacing the Linux with an ASA5506. The only reason the current setup has 3 networks is because they ran out of IP's on network1.

I tested configuring the inside interface on the ASA with a 192.168.1.2/22 network and changing the configuration on two PC's on network1 to 192.168.1.100/22 with gateway 192.168.1.2 and 192.168.1.101/22 with gateway 192.168.1.2 and I get a good ping if both PC's are on the same switch. However, when I test from a 3rd PC with a similar config on switch2 or switch3 the ping intermittently fails.

Can I configure 3 interfaces on the ASA?

What alternatives do I have to accomplish this task?

[Georg Pauwen]

Hello,

is it an ASA 5506X ? If that is the case, it has 8 layer 3 GigabitEthernet interfaces.

Can you post the config you have so far ?

[bcheing01]

Thank you Georg for your reply. Yes, it's an ASA 5506X. I currently don't have access to connect to it so I won't be able to get the config. What I've tried is the following setup that didn't work.

Setup:

I configured the ASA's inside interface (port 2) with IP 192.168.1.2 and mask 255.255.248.0, connected this port to the switch, but as explained above I get ping failures between hosts in the network.