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Cisco IOS Software (23 results)
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- Get to know the Cisco IOS Feature Navigator
- David Davis tells you how the Cisco IOS Feature Navigator can help you find the information you need, including what features your current IOS image has, the differences between two IOS images, and whether your router can support the latest IOS. by David Davis
- Blog posts 2008-07-24
- How to view Cisco IOS ACL statistics
- David Davis shows you how to view ACL statistics and, with the help of a new feature in the Cisco IOS, how you can view these usage statistics per interface and per direction. by David Davis
- Blog posts 2008-07-17
- Five Cisco IOS tips to make you more efficient
- Keeping your Cisco equipment configured for optimal performance can be a time-consuming process. In this IT Dojo video, Bill Detwiler demonstrates five, time-saving tips for working more efficiently with Cisco IOS commands. by Bill Detwiler
- Blog posts 2008-06-30
- IT Dojo: Five Cisco IOS tips to make you more efficient
- Working with Cisco routers and switches is a part of almost every network administrator's job. Keeping your Cisco equipment configured for optimal performance can be a time-consuming process, but there are a few general rules that will make you a more efficient administrator. In this IT Dojo video, Bill...
- Videos 2008-06-30
- Configuring the Cisco 851W or 871W: Standard IOS
- This tutorial by George Ou and Justin James shows you how to set up an advanced SOHO configuration for the Cisco 851W router. by George Ou
- Blog posts 2008-07-03
- Understand the levels of privilege in the Cisco IOS
- The Cisco IOS actually offers 16 different privilege levels. David Davis discusses these different levels and introduces you to the main commands you'll need to configure these privileges. by David Davis
- Blog posts 2008-06-20
- Cisco IOS VLAN Services
- In LAN workgroup environments, the ISL protocol delivers VLAN functionality with full switching performance. Where enterprise-wide virtual networking is required, multivendor interoperability resulting from standards-based implementation, such as that provided by Cisco Systems, is key. Cisco supports VLANs over ATM via LAN Emulation and, in large LAN and serial link...
- White papers
- Cisco IOS Firewall Authentication Proxy for FTP and Telnet Sessions Buffer Overflow
- Cisco Systems has released Cisco Security Advisory: Cisco IOS Firewall Authentication Proxy for FTP and Telnet Sessions Buffer Overflow. This paper describes the Firewall Authentication Proxy (Auth-Proxy) feature and discusses the workarounds and mitigations identified in the advisory. The firewall authentication proxy feature allows network administrators to apply specific security...
- White papers
- Basics of a Successful Cisco IOS Software Migration
- This paper documents a successful four-phase release migration process implemented by a large retail customer working closely with its Cisco Advanced Services team. It can be used by any Cisco customer to simplify network operations and management. Well-planned migrations of Cisco IOS Software keep a network healthy during and after...
- White papers
- BT Group - MPLS-Based IP VPNs Built on Cisco IOS Software Enable Streamlined and "Applications-Aware" Enterprise Network Services
- BT Group is recognized as one of the leading providers of data networking services in Europe. Companies with branch offices in different regions and countries had to create multiple, expensive network solutions to interconnect and extend there corporate networks. BT Global Services worked closely with Cisco Systems to become the...
- Case studies
- Cisco Systems Case Study: ChevronTexaco
- Chevron Corp. and Texaco Inc., established ChevronTexaco, presenting the new venture with a host of logistical challenges, particularly how to integrate the IT resources of the two companies worldwide. ChevronTexaco had installed faster servers and had substantially more bandwidth to speed up information flowing along the networks, but in some...
- Case studies
- Cisco Migrates Global Wireless LAN to Cisco IOS Software for Enhanced Functionality, Manageability, and Security
- This case study describes the migration to Cisco IOS Software of Cisco IT's internal wireless LANs within the Cisco network, a leading-edge enterprise environment that is one of the largest and most complex in the world. Cisco customers can draw on Cisco IT's real-world experience in this area to help...
- Case studies
- 10 commands you should master when working with the Cisco IOS
- Becoming proficient with the Cisco IOS means learning some essential commands. This quick reference describes 10 commands you'll need to rely on when handling various configuration and troubleshooting tasks. by David Davis
- Blog posts 2008-06-13
- Troubleshoot Cisco routers and switches using the debug commands
- David Davis shows you how to get to the bottom of router and switch issues with Cisco's debug commands. Debug can give you a lot of detailed troubleshooting information, but watch out for the debug mistakes that can seriously affect your network. by David Davis
- Blog posts 2008-06-12
- What you need to know about Cisco IOS access-list filtering
- Let's face it, if you don't use Cisco IOS access lists ACL every day, they can be very painful to use. Why are ACLs so painful? Besides just being difficult to use, the penalty for mistake is huge. In one swift swoop, you could incorrectly permit malicious attackers onto your...
- Blog posts 2008-06-05
- Cisco Security Advisory: Cisco IOS Secure Shell Denial of Service Vulnerabilities
- The Secure Shell server SSH implementation in Cisco IOS contains multiple vulnerabilities that allow unauthenticated users the ability to generate a spurious memory access error or, in certain cases, reload the device. The IOS SSH server is an optional service that is disabled by default, but its use is highly...
- White papers 2008-05-21
- How to perform a Cisco IOS warm upgrade and reload to minimize downtime
- Recently, I wanted to upgrade my test router to the latest IOS. I had read about the new Cisco IOS warm upgrade and warm reload features, and I took this opportunity to test them out. By using these features, you can minimize downtime for your end users when you have...
- Blog posts 2008-05-22
- Use the Cisco IOS archive command to archive your router's configuration
- Do you want to create archives of your configuration before every configuration change is made? What was the difference between the configuration you saved last year and the one you saved today? The archive command can help you answer these questions and more. Check it out. What is the...
- Blog posts 2008-05-29
- Security researcher to unveil rootkit for Cisco routers
- Security researcher Sebastian Muniz of Core Security Technologies will be unveiling a malicious rootkit that he developed for Cisco's routers at the EuSecWest conference on May 22. Traditionally the domain of operating systems, rootkits are essentially malware that makes extraordinary efforts to hide themselves by subverting key...
- Blog posts 2008-05-15
- Filter ICMP traffic in the Cisco IOS
- The Internet Control Message Protocol ICMP is not TCP and it's not UDP. However, ICMP is critical to the functionality of any IP network, such as your corporate network or the Internet. While ICMP is required for IP network traffic redirection and pinging hosts on your LAN or WAN, ICMP...
- Blog posts 2008-05-15
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