Chapter 19 Configuring Cisco Mobility Advantage

Information about the Cisco Mobility Advantage Proxy Feature

Figure 19-2The TLS proxy for the Cisco Mobility Advantage solution does not support client authentication because the Cisco UMA client cannot present a certificate. Security

Appliance as Firewall with Mobility Advantage Proxy and MMP Inspection

 

 

 

 

 

Enterprise Services

 

Mobile Data

 

Firewall

Network: Active Directory

 

Network (GPRS

 

 

 

10.1.1.0/24

 

Exchange

 

Data Channel)

 

 

IP Address:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10.1.1.2

 

 

 

 

MMP/SSL/TLS

ASA with

Port: 5443

 

Cisco Unified

 

 

 

 

Presence

 

 

 

TLS Proxy

 

 

 

 

 

 

 

MMP/SSL/TLS

 

 

 

Hostname:

 

Cisco UMA

Voice mail

 

 

cuma.example.com

Network:

Server

 

 

Cisco UMC Client

Network: 192.0.2.0/24

10.1.1.0/24

 

 

 

 

IP Address: 192.0.2.140

IP Address:

 

MP

 

 

10.1.1.1

 

 

 

 

Port: 5443

 

Conference

 

PSTN

 

 

 

 

 

 

M

 

Voice Channel

 

 

 

271641

 

 

 

Cisco UCM

 

 

 

 

 

 

 

 

 

In Figure 19-2, the ASA performs static NAT by translating the Cisco UMA server 10.1.1.2 IP address to 192.0.2.140.

Figure 19-3shows deployment scenario 2, where the ASA functions as the TLS proxy only and does not function as the corporate firewall. In this scenario, the ASA and the corporate firewall are performing NAT. The corporate firewall will not be able to predict which client from the Internet needs to connect to the corporate Cisco UMA server. Therefore, to support this deployment, you can take the following actions:

•Set up a NAT rule for inbound traffic that translates the destination IP address 192.0.2.41 to 172.16.27.41.

•Set up an interface PAT rule for inbound traffic translating the source IP address of every packet so that the corporate firewall does not need to open up a wildcard pinhole. The Cisco UMA server receives packets with the source IP address 192.0.12.183.

See Chapter 4, “Configuring Network Object NAT (ASA 8.3 and Later)” and Chapter 5, “Configuring Twice NAT (ASA 8.3 and Later)” for information.

Note This interface PAT rule converges the Cisco UMA client IP addresses on the outside interface of the ASA into a single IP address on the inside interface by using different source ports. Performing this action is often referred as “outside PAT”. “Outside PAT” is not recommended when TLS proxy for Cisco Mobility Advantage is enabled on the same interface of the ASA with phone proxy, Cisco Unified Presence, or any other features involving application inspection. “Outside PAT” is not supported completely by application inspection when embedded address translation is needed.

Cisco ASA Series Firewall ASDM Configuration Guide

19-3

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Cisco Systems ASA Services Module, ASA 5505, ASA 5545-X, ASA 5555-X, ASA 5585-X, ASA 5580 manual 19-3, Mmp/Ssl/Tls
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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.
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