ASA 5540 Memory Requirements for URL Filtering

[Sami Abunasser]

Hi,

I am migrating our core network firewall over to a Cisco ASA 5540 Active/Standby Cluster. The firewall will act as the main Ingress/Egress firewall, along with forwarding URL Filtering to a Websense server cluster.

The Firewall will be connected to two 100Mbps Internet connections (indirectly, as it will connect up to a 39xx router most likely). It will need to be capable of the following:

1) Filtering inbound/outbound traffic.

2) Supporting a DMZ with web servers, exchange servers, and OCS cluster.

3) Forward URL filtering to a websense cluster (most likely on the inside network).

4) Support OS 8.3 for Netflow reporting.

I was wondering if anyone new of where to find the memory requirements for supporting this traffic. I was thinking since the recommended for OS 8.3 was 2GB, that upgrading the boxes to 4GB would be sufficient.

Any assistance would be appreciated.

Thanks,

Sami

[Kureli Sankar]

All you need to know about 8.3 upgrade: https://supportforums.cisco.com/docs/DOC-12690

Before and after NAT config samples: https://supportforums.cisco.com/docs/DOC-9129

I don't believe there is a document that talks specifically about websense and the memory needed for that for each platform.

Pls. check the data sheet here: http://www.cisco.com/en/US/partner/products/ps6120/products_data_sheets_list.html

-KS