Cisco Systems OL-5650-02 guide

Chapter 5 Configuring Firewall Load Balancing

Configuring FWLB with VIP and Virtual Interface Redundancy

In Figure 5-2, odd-numbered firewalls are connected to the Layer 2 switches servicing the CSS-OUT-L and CSS-IN-L CSSs. Even-numbered firewalls are connected to the Layer 2 switches servicing the CSS-OUT-R and CSS-IN-R CSSs.

Figure 5-2 FWLB with VIP/Interface Redundancy Configuration

CSS-OUT-L

10.2.1.254

Layer 2 switch

Redundant

interface

CSS-OUT-R

10.2.1.253

Layer 2 switch

10.2.200.1	10.2.200.2	10.2.200.3
10.2.200.11	10.2.200.12	10.2.200.13
Firewall 1	Firewall 2	Firewall 3
10.3.200.1	10.3.200.2	10.3.200.3
10.3.200.11	10.3.200.12	10.3.200.13

10.2.200.4 10.2.200.14

Firewall 4

10.3.200.4

10.3.200.14

Layer 2 switch

10.3.1.224

CSS-IN-L

Redundant VIP

Redundant

interface

Layer 2 switch

10.3.1.223
CSS-IN-R	59263
	59263

Each firewall must have two addresses on either side of it. The first address is used for the next hop on the lower-cost static (primary) path. The second address is used for the next hop on the higher-cost floating-static (secondary) path.

Set the floating-static paths with a higher cost (typically a cost of 10) than those associated with the static paths (typically a cost of 1). If a CSS fails (for example, CSS-OUT-L), CSS-OUT-R will use the higher cost path to send traffic to CSS-IN-L.

		Cisco Content Services Switch Security Configuration Guide
		Cisco Content Services Switch Security Configuration Guide
	OL-5650-02			5-11
	OL-5650-02			5-11

Image 109

Cisco Systems OL-5650-02 manual Fwlb with VIP/Interface Redundancy Configuration

Contents

Cisco Content Services Switch Security Configuration Guide Cisco Content Services Switch Security Configuration Guide Iii N T E N T S ACL Overview Configuring the CSS as a Client of a Radius Server Configuring Firewall Load Balancing Vii Example of Fwlb Viii B L E S OL-5650-02 Preface Audience How to Use This GuideXii Xiii Related Documentation Xiv Rmon Document Title Description Xvi Symbols and Conventions Cisco.com Obtaining DocumentationXvii Documentation DVD Documentation FeedbackOrdering Documentation Xviii Cisco Product Security Overview Reporting Security Problems in Cisco ProductsXix Cisco Technical Support Website Obtaining Technical Assistance Xxi Submitting a Service Request Xxii Definitions of Service Request Severity Xxiii Xxiv Controlling CSS Access Config# username-offdm bobo password secret Changing the Administrative Username and Password Config# username picard password captain superuser Creating Usernames and Passwords Controlling CSS Access Creating Usernames and Passwords Config# no username picard Config# username picard password captain superuser NwbnnnrConfig# username picard password flute superuser Controlling Remote User Access to the CSS Configuring Virtual Authentication #config virtual authentication primary tacacs Configuring Console Authentication#config virtual authentication secondary local #config console authentication secondary local #config console authentication primary tacacs#config no console authentication Enabling Administrative Access to the CSS Controlling Administrative Access to the CSS Config# no restrict web-mgmt Disabling Administrative Access to the CSS Config# restrict telnet Controlling CSS Network Traffic Through Access Control Lists ACL Overview ACL ACL Configuration Quick Start Config-acl7#clause 15 permit any any destination any Config-acl7#clause 10 deny any any destination range 20Config-acl7#apply circuit-VLAN1 Creating an ACL Config-acl7#remove circuit-VLAN1 Config# acl disableDeleting an ACL Configuring Clauses Cisco Content Services Switch Security Configuration Guide Variables Options Parameters Destination content ownername/ rulename for an Variables OptionsParameters Show group ? Variables Options Parameters Prefer Adding a Clause When ACLs are Globally Enabled Config-acl7apply circuit-VLAN1 Config-acl7remove circuit-VLAN1Deleting a Clause Applying an ACL to a Circuit or DNS Queries Removing an ACL from Circuits or DNS Queries Enabling ACLs on the CSS Showing ACLs Disabling ACLs on the CSS Field Description Logging ACL Activity Setting the Show ACL Counters to Zero Config-acl7#clause 1 log disable Config-acl7#clause 1 log enable ACL Example Config# no logging subsystem acl Configuring Network Qualifier Lists for ACLs Describing an NQL Creating an NQLAdding Networks to an NQL Config-nqlbypassnql#no ip address 192.168.0.0/16 Config# logging subsystem nql level debug-7 Adding an NQL to an ACL Clause Showing NQL Configurations Configuring the Secure Shell Daemon Protocol # license Enabling SSH Configuring Sshd in the CSS Configuring SSH AccessConfiguring Sshd Keepalive Config# no restrict ssh Configuring Sshd Server-Keybits Configuring Sshd Port Config# sshd server-keybits Configuring Sshd VersionConfig# no sshd server-keybits Config# sshd version Showing Sshd Configurations Configuring Telnet Access When Using SshdConfig# no restrict telnet # show sshd config # show sshd sessions # show sshd version Ptyfd Radius Server Configuring the CSS as a Client of a Radius Server Config# radius-server primary 172.27.56.76 secret Hello Radius Configuration Quick StartConfig# radius-server secondary 172.27.56.79 secret Hello #config virtual authentication primary radius Configuring a Radius Server for Use with the CSS Configuring Authorization Settings Configuring Authentication Settings Specifying a Primary Radius Server Config# no radius-server secondary Config# no radius-server primarySpecifying a Secondary Radius Server Configuring the Radius Server Retransmits Configuring the Radius Server TimeoutsConfig# radius-server timeout Config# no radius-server timeout Config# no radius-server retransmit Configuring the Radius Server Dead-TimeConfig# radius-server dead-time Config# no radius-server dead-time DOWN, Unknown Config# show radius statistics secondary 3describes the fields in the show radius statistics output OL-5650-02 TACACS+ Server TACACS+ Configuration Quick Start Config# show tacacs-server Configuring Authorization Settings Configuring Global TACACS+ Attributes #config tacacs-server timeout Setting the Global CSS TACACS+ Timeout Period#config no tacacs-server timeout #config tacacs-server key market Setting the Global TACACS+ Keepalive Frequency#config tacacs-server key acskefterefesdtx #config no tacacs-server key Defining a TACACS+ Server Config# no tacacs-server frequency OL-5650-02 #config no tacacs-server 192.168.11.1 Setting TACACS+ Authorization #config tacacs-server authorize non-config #config tacacs-server authorize config#config no tacacs-server authorize config #config no tacacs-server authorize non-config Setting TACACS+ Accounting Showing TACACS+ Server Configuration Information Field Description OL-5650-02 Configuring Firewall Load Balancing Overview of Fwlb Firewall Synchronization Configuring Fwlb Config# ip firewall 1 192.168.27.1 192.168.28.1 Configuring a Keepalive Timeout for a FirewallConfig# no ip firewall Config# ip firewall timeout Configuring an IP Static Route for a FirewallConfig# no ip firewall timeout Config# ip route 192.168.2.0/24 firewall 1 Configuring Ospf to Advertise Firewall RoutesConfig# no ip route 192.168.2.0/24 firewall Config# ospf redistribute firewall metric 3 type1 Example of Fwlb Static Route Configuration Configuring RIP to Advertise Firewall RoutesConfig# no ospf redistribute firewall Config# rip redistribute firewall Config# ip route 192.168.2.0/24 firewall Config# ip firewall 1 192.168.28.1 192.168.27.1Config# ip firewall 2 192.168.28.2 192.168.27.2 Config# ip route 0.0.0.0/0 firewall Example of Fwlb Configuring Fwlb with VIP and Virtual Interface Redundancy Fwlb with VIP/Interface Redundancy Configuration Cisco Content Services Switch Security Configuration Guide CSS-OUT-L Configuration Example of Firewall and Route Configurations CSS-IN-L Configuration Config# show flows Config# show flows 192.165.22.1Displaying Firewall Flow Summaries Displaying Firewall IP Routes Config# show ip routes firewall Displaying Firewall IP Information Config# show ip firewall OL-5650-02 IN-1 D E IN-2 IN-3 FTP IN-4 Radius IN-5 XML IN-6