Chapter 21 Configuring Cisco Intercompany Media Engine Proxy

Configuring Cisco Intercompany Media Engine Proxy

connections between the local Cisco UCM and the local ASA. The instructions in that task describe how to create trustpoints between the local Cisco UCM and the local ASA.

Prerequisites for Installing Certificates

To create a proxy certificate on the ASA that is trusted by the remote entity, obtain a certificate from a trusted CA or export it from the remote enterprise ASA.

To export the certificate from the remote enterprise, you enter the following command on the remote ASA:

hostname(config)# crypto ca export trustpoint identity-certificate

The ASA prompts displays the certificate in the terminal screen. Copy the certificate from the terminal screen. You will need the certificate text in Step 5 of this task.

Procedure

To create the trustpoints and generate certificates, perform the following steps:

 

Command

Purpose

 

 

 

Step 1

hostname(config)# crypto key generate rsa label

On the local ASA, creates the RSA keypair that

 

key-pair-label modulus size

can be used for the trustpoints. This is the

 

Example:

keypair and trustpoint for the local entities

 

hostname(config)# crypto key generate rsa label

 

signed certificate.

 

local-ent-key modulus 2048

 

 

 

 

The modulus key size that you select depends on

 

 

the level of security that you want to configure

 

 

and on any limitations imposed by the CA from

 

 

which you are obtaining the certificate. The

 

 

larger the number that you select, the higher the

 

 

security level will be for the certificate. Most

 

 

CAs recommend 2048 for the key modulus size;

 

 

however,

 

 

Note GoDaddy requires a key modulus size of

 

 

2048.

 

 

 

Step 2

hostname(config)# crypto ca trustpoint trustpoint_name

Enters the trustpoint configuration mode for the

 

Example:

specified trustpoint so that you can create the

 

hostname(config)# crypto ca trustpoint local_ent

trustpoint for the local entity.

 

 

 

 

A trustpoint represents a CA identity and

 

 

possibly a device identity, based on a certificate

 

 

issued by the CA. Maximum name length is 128

 

 

characters.

 

 

 

Step 3

hostname(config-ca-trustpoint)# subject-nameX.500_name

Includes the indicated subject DN in the

 

Example:

certificate during enrollment.

 

hostname(config-ca-trustpoint)# subject-name

Note The domain name that you enter here

 

cn=Ent-local-domain-name**

 

 

must match the domain name that has

 

 

been set for the local Cisco UCM.

 

 

For information about how to configure

 

 

the domain name for Cisco UCM, see the

 

 

Cisco Unified Communications

 

 

Manager documentation for information.

 

 

 

Cisco ASA Series Firewall ASDM Configuration Guide

21-22

Page 510
Image 510
Cisco Systems ASA 5505, ASA 5545-X, ASA 5555-X, ASA 5585-X, ASA 5580 manual Prerequisites for Installing Certificates, 21-22

ASA Services Module, ASA 5555-X, ASA 5545-X, ASA 5585-X, ASA 5580 specifications

Cisco Systems has long been a leader in the field of network security, and its Adaptive Security Appliance (ASA) series is a testament to this expertise. Within the ASA lineup, models such as the ASA 5505, ASA 5580, ASA 5585-X, ASA 5545-X, and ASA 5555-X stand out for their unique features, capabilities, and technological advancements.

The Cisco ASA 5505 is designed for small businesses or branch offices. It provides essential security features such as firewall protection, flexible VPN capabilities, and intrusion prevention. The ASA 5505 supports a user-friendly interface, allowing for straightforward management. Its built-in threat detection and prevention tools provide a layered defense, and with scalability in mind, it can accommodate various expansion options as organizational needs grow.

Moving up the line, the ASA 5580 delivers greater throughput and advanced security features. This model is suited for medium to large enterprises that require robust protection against increasingly sophisticated threats. Its multi-core architecture allows it to manage high volumes of traffic seamlessly while maintaining excellent performance levels. The ASA 5580 also supports application-layer security and customizable access policies, making it highly adaptable to diverse security environments.

The ASA 5585-X further enhances Cisco's security offerings with advanced malware protection and extensive security intelligence capabilities. It incorporates next-generation firewall features, including context-aware security, and supports advanced threat detection technologies. This model is ideal for large enterprises or data centers that prioritize security while ensuring uninterrupted network performance and availability.

For enterprises requiring a balance of performance and security, the ASA 5545-X presents a compelling option. This model features scalable performance metrics, high availability, and integrated advanced threat protection. Coupled with advanced endpoint protection and detailed monitoring capabilities, the ASA 5545-X enables organizations to manage their security posture effectively.

Lastly, the ASA 5555-X blends cutting-edge technologies with strong security infrastructures. It boasts high throughput and the ability to execute deep packet inspections. Its sophisticated architecture supports threat intelligence feeds that provide real-time security updates, making it a powerful tool against modern threats.

Each of these Cisco ASA models brings specific advantages to varied environments. Their integrative capabilities enable businesses to enhance their security postures while benefiting from seamless scalability and management. As cybersecurity threats evolve, these advanced appliances play a vital role in protecting valuable digital assets.