Download CCNA Security 640-554 Quick Reference by Anthony Sequeira PDF

By Anthony Sequeira

With this record as your advisor, you'll evaluation issues on enforcing Cisco IOS community safeguard. This fact-filled speedy Reference helps you to get all-important details at a look, assisting you to concentration your learn on components of weak point and to reinforce reminiscence retention of crucial examination recommendations.

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IPv6 IPsec is the IETF standard for IPv6 network security, and IPsec support is mandatory. This provides a secure end-to-end solution for internetworking. © 2012 Pearson Education, Inc. All rights reserved. This publication is protected by copyright. Please see page 89 for more details. [ 38 ] Chapter 2: Perimeter Security Many of the threats faced in an IPv6 environment are the same found in an IPv4 environment. Unfortunately, IPv6 has some new vulnerabilities: ■ Training and planning. ■ End nodes exposed to many more threats such as address configuration.

All rights reserved. This publication is protected by copyright. Please see page 89 for more details. [ 62 ] Chapter 4: Site-to-Site VPNs Authentication Header (AH) Data in plaintext R1 Provides: • Authentication • Integrity R2 Encapsulating Security Payload (ESP) Data encrypted R1 Provides: • Encryption • Authentication • Integrity R2 Figure 4-1 IPsec Security Protocols You can apply ESP and AH to IP packets in two different modes: ■ Transport mode: Security is provided only for the transport layer and above.

This publication is protected by copyright. Please see page 89 for more details. [ 32 ] Chapter 2: Perimeter Security The Architecture for Secure Management and Reporting The information flow between management hosts and the managed devices can take two paths: ■ Out-of-band (OOB): Information flows within a network on which no production traffic resides. ■ In-band: Information flows across the enterprise production network. Overall guidelines for secure management and reporting include the following: ■ Keep clocks on hosts and network devices synchronized.

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