Cisco routers are used widely both on the Internet and in corporate intranets. At the same time, the Cisco Internet Operating System (IOS) has grown to be very large and complex, and Cisco documentation fills several volumes. Cisco IOS Access Lists focuses on a critical aspect of the Cisco IOS--access lists. Access lists are central to the task of securing routers and networks, and administrators cannot implement access control policies or traffic routing policies without them. Access lists are used to specify both the targets of network policies and the policies themselves. They specify…mehr
Cisco routers are used widely both on the Internet and in corporate intranets. At the same time, the Cisco Internet Operating System (IOS) has grown to be very large and complex, and Cisco documentation fills several volumes. Cisco IOS Access Lists focuses on a critical aspect of the Cisco IOS--access lists. Access lists are central to the task of securing routers and networks, and administrators cannot implement access control policies or traffic routing policies without them. Access lists are used to specify both the targets of network policies and the policies themselves. They specify packet filtering for firewalls all over the Internet. Cisco IOS Access Lists covers three critical areas: Intranets. The book serves as an introduction and a reference for network engineers implementing routing policies within intranet networking - Firewalls. The book is a supplement and companion reference to books such as Brent Chapman's Building Internet Firewalls. Packet filtering is an integral part of many firewall architectures, and Cisco IOS Access Lists describes common packet filtering tasks and provides a "bag of tricks" for firewall implementers. The Internet. This book is also a guide to the complicated world of route maps. Route maps are an arcane BGP construct necessary to make high level routing work on the Internet. Cisco IOS Access Lists differs from other Cisco router titles in that it focuses on practical instructions for setting router access policies. The details of interfaces and routing protocol settings are not discussed.Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.
Jeff Sedayao is a network engineer with Intel Online Services, the web and application hosting division of Intel Corporation. From 1987 through 1999, he architected and maintained Intel's Internet connectivity, starting with a simple 2400-bps email link through CSNET and ending up with multiple sites connecting to the Internet with multiple ISPs at multi-megabit speeds. He has always been fascinated with policy and policy implementation, ranging from using Cisco IOS access lists for routing and firewall policies to sendmail configurations and address space design. As part of Intel Online Services, his main interests include network usage and performance issues, DNS and email implementation, and addressing and routing policy.
Inhaltsangabe
Preface Organization Audience Conventions used in this book We'd like to hear from you Acknowledgments Chapter 1: Network Policies and Cisco Access Lists 1.1 Policy sets 1.2 The policy toolkit Chapter 2: Access List Basics 2.1 Standard access lists 2.2 Extended access lists 2.3 More on matching 2.4 Building and maintaining access lists 2.5 Named access lists Chapter 3: Implementing Security Policies 3.1 Router resource control 3.2 Packet filtering and firewalls 3.3 Alternatives to access lists Chapter 4: Implementing Routing Policies 4.1 Fundamentals of route filtering 4.2 Implementing routing modularity 4.3 Implementing route preferences 4.4 Alternatives to access lists Chapter 5: Debugging Access Lists 5.1 Router resource access control lists 5.2 Packet-filtering access control lists 5.3 Route-filtering access control lists Chapter 6: Route Maps 6.1 Other access list types 6.2 Generic route map format 6.3 Interior routing protocols and policy routing 6.4 BGP 6.5 Debugging route maps and BGP Chapter 7: Case Studies 7.1 A WAN case study 7.2 A firewall case study 7.3 An Internet routing case study Extended Access List Protocols and Qualifiers Binary and Mask Tables Common Application Ports Colophon
Preface Organization Audience Conventions used in this book We'd like to hear from you Acknowledgments Chapter 1: Network Policies and Cisco Access Lists 1.1 Policy sets 1.2 The policy toolkit Chapter 2: Access List Basics 2.1 Standard access lists 2.2 Extended access lists 2.3 More on matching 2.4 Building and maintaining access lists 2.5 Named access lists Chapter 3: Implementing Security Policies 3.1 Router resource control 3.2 Packet filtering and firewalls 3.3 Alternatives to access lists Chapter 4: Implementing Routing Policies 4.1 Fundamentals of route filtering 4.2 Implementing routing modularity 4.3 Implementing route preferences 4.4 Alternatives to access lists Chapter 5: Debugging Access Lists 5.1 Router resource access control lists 5.2 Packet-filtering access control lists 5.3 Route-filtering access control lists Chapter 6: Route Maps 6.1 Other access list types 6.2 Generic route map format 6.3 Interior routing protocols and policy routing 6.4 BGP 6.5 Debugging route maps and BGP Chapter 7: Case Studies 7.1 A WAN case study 7.2 A firewall case study 7.3 An Internet routing case study Extended Access List Protocols and Qualifiers Binary and Mask Tables Common Application Ports Colophon
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