does the ASA support no auto-summary and CIDR??

[jose cortes]

Hi everybody,

I'm wander if I can do the following deployment using a Cisco ASA5510 security plus.

At this moment I have two interfaces in use one (outside) with the IP: 172.16.21.254/24 and the other (inside) with the IP: 192.168.4.1/24. Now the customer needs to connect another network that works with the IP segment: 192.168.0.0/22.

The IP segment 192.168.0.0/22 goes from 192.168.0.1 to 192.168.3.254 that means that there is no a overlap with the network segment 192.168.4.0/24. My question is: If I configure another interface in the ASA that works in the segment 192.168.0.0/22 the routing table will auto-summary the network and merge it with the network 192.168.4.0 or will it leave the networks apart??

I don't user dynamic routing protocols but I cannot do the changes if I have doubts because the network 192.168.0.0/22 is a the Network for the Factory Automation Systems.

Thanks and Regards

Jose

[Julio Carvajal · Accepted solution]

Hello Jose,

You should be able to implement this in your network without experiencing any issues regarding the routing table of your firewall.

I have worked with customer having scenarios just like the one you are making reference.

Please let me know if you have any other question, if not please mark the question as answered.

Regards,