Cisco PIX 525 Spezifikationen PDF herunterladen (Seite 6)

Contents

vi

Cisco PIX Firewall and VPN Configuration Guide

78-15033-01

Configuring PIX Firewall Interfaces 2-4

Assigning an IP Address and Subnet Mask 2-5

Identifying the Interface Type 2-5

Changing Interface Names or Security Levels 2-6

Establishing Outbound Connectivity with NAT and PAT 2-7

Overview 2-7

How NAT and PAT Work 2-9

Configuring NAT and PAT 2-9

Configuring the PIX Firewall for Routing 2-12

Using RIP 2-12

Configuring RIP Static Routes on PIX Firewall 2-13

Using OSPF 2-14

Overview 2-14

Security Issues When Using OSPF 2-14

OSPF Features Supported 2-15

Restrictions and Limitations 2-16

Configuring OSPF on the PIX Firewall 2-17

Using OSPF in Public Networks 2-17

Using OSPF in Private and Public Networks 2-19

Viewing OSPF Configuration 2-20

Clearing OSPF Configuration 2-21

Testing and Saving Your Configuration 2-21

Testing Connectivity 2-22

Saving Your Configuration 2-24

Basic Configuration Examples 2-24

Two Interfaces Without NAT or PAT 2-25

Two Interfaces with NAT and PAT 2-27

Three Interfaces Without NAT or PAT 2-29

Three Interfaces with NAT and PAT 2-31

Using VLANs with the Firewall 2-33

Overview 2-33

Using Logical Interfaces 2-34

VLAN Security Issues 2-34

Configuring PIX Firewall with VLANs 2-35

Managing VLANs 2-36

Using Outside NAT 2-37

Overview 2-37

Simplifying Routing 2-38

Configuring Overlapping Networks 2-39

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