cisco press ios xr fundamentals

... Trang 2Inside Cisco IOS Software Architecture Copyright Information Copyright © 2000 Cisco Systems, Inc Cisco Press logo is a trademark of Cisco Systems, Inc Published by: Cisco Press 201 West ... through forums, Cisco presentations, and the Cisco Technical Assistance Center Most of the information you cannot find in the Cisco IOS documentation Objectives Inside Cisco IOS Software Architecture ... summarizes the switching methods developed as of Cisco IOS Release 12.0: • Distributed fast switching • Cisco Express Forwarding (CEF) • Distributed Cisco Express Forwarding (dCEF) Trang 38This chapter

Ngày tải lên: 16/11/2014, 19:56

... ! hostname TERM_SERVER ! logging rate-limit console 10 except errors enable password cisco Trang 8! Cisco Press CCIE Practical Studies Volume Iservice timestamps debug uptime service timestamps ... rate-limit console 10 except errors enable password cisco Trang 11cdapi buffers regular 0cdapi buffers raw 0 cdapi buffers large 0 Trang 13! Cisco Press CCIE Practical Studies Volume Iservice timestamps ... password-encryption ! hostname r2 ! netbios access-list host denylab deny lab* netbios access-list host denylab permit -1 logging rate-limit console 10 except errors enable password cisco Trang 14frame-relay

Ngày tải lên: 18/01/2014, 05:20

... Trang 1PART IIIConfiguring a Router Chapter 6 Configuring a Single Cisco Router Trang 2This page intentionally left blank Trang 3• Entering global configuration mode• ... ho o os s st tn t na n a am m me e e C C Ci i is s sc co c o The name can be any word you choose Cisco(config)# Router(config)#e e en n na a ab bl b le l e e p p pa as a s ss s sw w wo or o r rd ... l e e p p pa as a s ss s sw w wo or o r rd d d c ci c is i s sc c co o Sets enable password to cisco Router(config)#l l li i in n ne e e c c co o on n ns so s o ol l le e e 0 0 Moves to console

Ngày tải lên: 14/08/2014, 13:21

... -mmmoododdee Sets the VTP domain to Version 2 This command is for Cisco IOS Software Release 12.3 and later If you are using a Cisco IOS Software release earlier than 12.3, the command is vtp version ... -mmmoododdee Sets the VTP domain to Version 2 This command is for Cisco IOS Release 12.3 and later If you are using a Cisco IOS release earlier than 12.3, the command is vtp version 2. NOTE: ... Mode CAUTION: The VLAN database mode has been deprecated and will be removed in some future Cisco IOS release Recommended practice dictates using only the VLAN configuration mode NOTE: To communicate

Ngày tải lên: 14/08/2014, 13:21

... the Cisco IOS Software to a TFTP server • Restoring/upgrading the Cisco IOS Software from a TFTP server • Restoring the Cisco IOS Software from ROM Monitor mode using Xmodem • Restoring the Cisco ... 16Backing Up and Restoring Cisco IOS Software and Configurations This chapter provides information and commands concerning the following topics: • Boot system commands • The Cisco IOS File System • Backing ... 10 0 0 3 3 Loads the Cisco IOS Software with image-name from a TFTP server Router(config)#b b bo o oo ot o t t s s sy ys y st s t te e em m m r r ro o om m Loads the Cisco IOS Software from ROM

Ngày tải lên: 14/08/2014, 13:21

... local username database, a local IP domain, and an RSA key to be generated The Cisco implementation of SSH requires Cisco IOS Software to support Shamir-Adleman (RSA) authentication and minimum Data ... Disables the HTTP server Trang 16218 The netstat CommandCAUTION: The HTTP server was introduced in Cisco IOS Software Release 11.0 to extend router management to the web You have limited management ... ip p p h ht h tt t t tp p p s se s e er r rv v ve er e r Enables the HTTP server, including the Cisco web browser user interface Router(config-if)#n no n o o i i ip p p h h ht t tt t tp p p se

Ngày tải lên: 14/08/2014, 13:21

... encapsulation method if connecting to a non-Cisco router. Trang 18258 Configuring Frame RelaySetting the Frame Relay Encapsulation LMI Type NOTE: As of Cisco IOS Software Release 11.2, the LMI type ... serial link for the link to become active Configuring PPP on a Serial Line (Optional Commands): Compression Configuring PPP on a Serial Line (Optional Commands): Link Quality NOTE: In PPP, the Link ... (Optional Commands): Router(config-if)#ccocomommppprrreesesssss sststtaaacc Enables the stac compression algorithm Router(config-if)#ppppppppp qqquuauaallliiittytyy x Ensures the link has a quality

Ngày tải lên: 14/08/2014, 13:21

... username/password combination again or to accept a digital signature from Cisco IOS Software If you are challenged, go ahead and enter cisco/ cisco or the username/password configured in CLI If you are asked ... changes, click Finish If not, click Back and make your changes. Figure 29-15 Cisco SDM Express Configuration Trang 17Cisco SDM Express provides final instructions on how to reconnect to the router if ... credentials using SDM or the CLI. Here are the cisco IOS commands Username <myuser> privilege 15 secret 0 <mypassword> No username cisco Replace <myuser> and <mypassword>

Ngày tải lên: 14/08/2014, 13:21

... signatures continues continues continues Posted: Wed Jun 14 11:30:40 PDT 2000 Copyright 1989 - 2000©Cisco Systems Inc Trang 2Table of ContentsThreats in an Enterprise Network Types of Threats Unauthorized ... data packets and then later replay them Impersonation of individuals is common Most of these scenarios pertain to gaining access to authentication sequences and then using this information to attain ... Internet Security: Repelling the Wily Hacker by William Cheswick and Steven Bellovin (Addison-Wesley Press) The TCP/IP Protocol Internet Protocol (IP) is a packet-based protocol used to exchange data

Ngày tải lên: 14/08/2014, 14:20

... and can be a very complex process Note Routing fundamentals are beyond the scope of this book Read Internet Routing Architectures, published by Cisco Press/MTP, for a more detailed discussion on ... minimum, you should consider the following environmental safeguards:Fire prevention, detection, suppression, and protection The following lists identify a sample physical security control policy ... an as-needed basis Most routers, regardless of the routing protocol used, have features that suppress the announcement of specified routes and can ignore certainreceived routes and not incorporate

Ngày tải lên: 14/08/2014, 14:20

... only read any SNMP MIB objects Cisco IOS Devices You can issue most of the Cisco IOS commands using a Web browser The Cisco IOS feature is accessed by using the Cisco Web browser interface, which ... the router's home page All Ciscorouters and access servers running Cisco IOS Release 11.0(6) or later have an HTTP server, which is anembedded subcomponent of the Cisco IOS software The HTTP server ... authentication mechanisms should be used if possible to simplify keeping track of passwords Cisco IOS For line access in Cisco IOS devices (which can be a console, a vty, or an aux port), you can set a simplepassword,

Ngày tải lên: 14/08/2014, 14:20

... dependent The following sections examine how Cisco IOSrouters provide filtering; most other vendors' devices have similar capabilities.Cisco IOS Filters The Cisco IOS software has an extended filtering ... Functionality Implementation Examples Cisco IOS Firewall Content-Based Access ControlSample IOS Firewall ConfigurationPIX Firewall with Screening IOS Router PIX Fundamentals Summary 9 Trang 5Securing ... will refer to features specific to equipment provided by Cisco Systems Thechapter explains how to configure Cisco IOS devices and the Cisco PIX firewall to provide necessarysecurity controls

Ngày tải lên: 14/08/2014, 14:20

... syslogaccess-list 111 deny ip any any log Trang 2PIX Firewall with Screening IOS RouterIn this scenario, the Cisco IOS router is used as the screening router to provide basic filtering of trafficcoming ... provides the more robust firewall features (see Figure 9-10) Figure 9-10: Sample Cisco PIX Firewall with Cisco IOS Screening Router The sample configurations in Listings 9-2 and 9-3 depict the ... router and firewall) access is through TACACS+ authentication and Listing 9-2 Configuration of Cisco IOS Screening Router ! ensure all vty login, line, and username passwords are encrypted ! with

Ngày tải lên: 14/08/2014, 14:20

... of Cisco IOS Release 12.0, the only client application softwareavailable is the Glacier Bay application server software for PCs Listing 10-5 shows a complete configuration file for a Cisco IOS ... 2359>] } } The Lock-and-Key Feature Lock-and-key is a traffic-filtering security feature in Cisco IOS devices that dynamically filters IP protocol traffic It can be used to authorize temporary ... for lock-and-key The user connects using the virtual terminal port on the router Step 2 The Cisco IOS software receives the Telnet packet, opens a Telnet session, prompts for a password, and

Ngày tải lên: 14/08/2014, 14:20

... to the home gateway (Denver-gw) ● Home Gateway Router Configuration: hostname Denver-gw ! ! In IOS firewall IPsec images "no service tcp & no udp small servers" is the ! default so ... traps public Trang 20! Configure NTP so that all the routers have the same time in the network.! In IOS firewall IPsec images "no service tcp & no udp small servers" is the ! default Turn

Ngày tải lên: 14/08/2014, 14:20

... • Appendix C, “Cisco IOS to IOS XR Security Transition”: Provides a one-for-one mapping between common IOS 12.0S security-related configuration commands and their respective IOS XR counterparts ... Analysis 602Cisco Product Security 602Cisco Security Vulnerability Policy 603Cisco Computer and Network Security 603Cisco Safety and Security 603 Cisco IPS Signature Pack Updates and Archives 603Cisco ... 9591 David J Smith, CCIE No 1986 Copyright © 2008 Cisco Systems, Inc. Cisco Press logo is a trademark of Cisco Systems, Inc. Published by: Cisco Press 800 East 96th Street Indianapolis, IN 46240

Ngày tải lên: 14/08/2014, 18:20

... 61NOTE The Cisco 12000 GSR is also able to run Cisco IOS XR Software with appropriate route processor and line card hardware installed It is worth noting that the CLI is different for IOS XR as compared ... the scope of this book The last key feature for CRS-1 is the use of the new Cisco IOS XR Software Traditional Cisco IOS is a modular, cooperative, multitasking operating system where processes ... more detail the significant Cisco router architectures One such reference, Inside Cisco IOS Software Architecture, provides excellent coverage of the Cisco 7500 and Cisco 12000 GSR A list of suggested

Ngày tải lên: 14/08/2014, 18:20

... Additional Cisco IOS NAT information can be found in the Cisco white paper “Cisco IOS Network Address Translation Overview,” referenced in the “Further Reading” section IOS Firewall IOS supports ... with not only how IOS FW operates, but also how it behaves under all operational conditions, including attack conditions Additional Cisco IOS FW information can be found in “Cisco IOS Firewall Overview” ... only how IOS IPS operates, but also how it behaves under all operational conditions, including attack conditions Additional Cisco IOS IPS information can be found in “Configuring Cisco IOS Intrusion

Ngày tải lên: 14/08/2014, 18:20

... transmit and drop rates The Cisco QoS MIB CISCO-CLASS-BASED-QOS-MIB provides the primary mechanisms for MQC-based policy monitoring via SNMP The implementation of this MIB is IOS release-dependent ... techniques adds significantly to the management burden Cisco Catalyst 6500/Cisco 7600 CoPP Implementation As previously stated, the Catalyst 6500 and Cisco 7600 series platforms (PFC3 and DFC3) provide ... policy is to deny fragments to the IOS process level on the RP, and fragments are included in the CoPP-undesirable class, this class must be defined Example 5-16 Sample IOS CoPP Policy Configuration

Ngày tải lên: 14/08/2014, 18:20

... http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/hsec_c/part05/index.htm “AutoSecure.” Cisco IOS Software Releases 12.2 SB Feature Guide. “Cisco IOS NetFlow.” Cisco Documentation http://www.cisco.com/en/US/products/ps6601/products_ios_protocol_group_home.html ... known as Cisco IOS Resilient Configuration and Cisco IOS Image Verification, respectively The IOS Resilient Configuration feature enables a router to securely archive copies of the running IOS image ... file that exists in the IOS File System (IFS) by using the copy command. For more information on IOS Resilient Configuration and IOS Image Verification, refer to the Cisco IOS Configuration Guides

Ngày tải lên: 14/08/2014, 18:20