Field Description | Cisco Systems OL-5650-02 manual

Chapter 1 Controlling CSS Access

Controlling CSS Network Traffic Through Access Control Lists

•DNS Hits - Packets that match an ACL clause for DNS flows when an ACL clause is applied to DNS queries. The display includes a DNS hit counter, which counts DNS lookups.

The total number of ACL hits for each packet received by the CSS can vary depending on the type of flow and whether an ACL match occurred. The CSS performs an ACL check for every packet received until the ACL flow is completely set up. Once the ACL flow is set up, remaining packets received by the CSS that are associated with the flow are not subject to an ACL match and the ACL hit counters do not increment.

The syntax is:

•show acl - Displays all ACLs and their clauses.

•show acl index - Displays the clauses for the specified ACL index number (valid numbers are 1 to 99).

•show acl config - Displays the ACL global configuration. This command also shows you which ACLs are applied to which circuits.

For example, enter:

(config)# show acl 2

Table 1-3describes the fields in the show acl command output.

Table 1-3 Field Descriptions for the show acl Command Output

		Field		Description

		Acl		The number assigned to the ACL (a number from 1 to 99)

		Clause		The number assigned to the clause (a number from 1 to
				254)

		Action		The method with which incoming traffic is controlled by
				the clause (permit, deny, or bypass) and the protocol for
				the type of traffic

		Source		The configured source of the traffic

		Destination		The configured destination for the traffic

		Log		Indicates whether ACL logging is enabled or disabled on
				the specified clause

		Content Hits		Increments for a packet received by the CSS before flow
				setup

			Cisco Content Services Switch Security Configuration Guide
			Cisco Content Services Switch Security Configuration Guide
	OL-5650-02					1-31
	OL-5650-02					1-31

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Cisco Systems OL-5650-02 manual Field Description

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 Xviii Documentation FeedbackDocumentation DVD Ordering Documentation 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 Config# no restrict ssh Configuring SSH AccessConfiguring Sshd in the CSS Configuring Sshd Keepalive Configuring Sshd Server-Keybits Configuring Sshd Port Config# sshd version Configuring Sshd VersionConfig# sshd server-keybits Config# no sshd server-keybits # show sshd config Configuring Telnet Access When Using SshdShowing Sshd Configurations Config# no restrict telnet # 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 Config# no radius-server timeout Configuring the Radius Server TimeoutsConfiguring the Radius Server Retransmits Config# radius-server timeout Config# no radius-server dead-time Configuring the Radius Server Dead-TimeConfig# no radius-server retransmit Config# 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 no tacacs-server key Setting the Global TACACS+ Keepalive Frequency#config tacacs-server key market #config tacacs-server key acskefterefesdtx Defining a TACACS+ Server Config# no tacacs-server frequency OL-5650-02 #config no tacacs-server 192.168.11.1 Setting TACACS+ Authorization #config no tacacs-server authorize non-config #config tacacs-server authorize config#config tacacs-server authorize non-config #config no tacacs-server authorize 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# ospf redistribute firewall metric 3 type1 Configuring Ospf to Advertise Firewall RoutesConfig# ip route 192.168.2.0/24 firewall 1 Config# no ip route 192.168.2.0/24 firewall Config# rip redistribute firewall Configuring RIP to Advertise Firewall RoutesExample of Fwlb Static Route Configuration Config# no ospf redistribute firewall Config# ip route 0.0.0.0/0 firewall Config# ip firewall 1 192.168.28.1 192.168.27.1Config# ip route 192.168.2.0/24 firewall Config# ip firewall 2 192.168.28.2 192.168.27.2 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