Sponsored White Papers, Webcasts, and Downloads
TechRepublic Resources
- sort by:
- Relevance
- Date
- Popularity
- 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
Additional Resources
- Wildcard masks with a twist
- I bring a question to the folks here on the forums to try and help me explain a wrinkle I recently encountered with respect to wildcard masks...Now, as I understood wildcard masks, they behave similary to subnet masks in that as you start placing bits in the mask, it works...
- Discussion threads 2004-10-06
- Cisco IP subnetting 101: Learn more about all 1s and all 0s subnet masks
- Subnet mask vs wildcard maskDavid, in the early days of my Cisco training, my instructors put a great deal of emphasis on differentiating between a subnet mask and masks used in access lists; you used the term "wildcard mask" (I have also heard "ACL mask" and "filter mask"), but only...
- Discussion threads 2005-08-08
- Playing with Cisco access lists
- Although typically considered Cisco's low-end security tool, access lists are far more productive. If you're new to Cisco, you will want to get to know this tool, and Alexander Prohorenko is here to help.In this Daily Drill Down, I'm going to help you understand what Cisco’s access lists are, how...
- Technical articles 2001-03-06
- What you need to know about Cisco IOS Access-List filtering
- Know the three Ps of ACLsThis is the one that tripped me up on a school project. What I don't get is, why isn't there some error message if you violate the rule? The end result of making a mistake is, the router simply defaults to the "permit...
- Discussion threads 2008-06-05
- ITcalc4 1.0 (Mobile)
- ITcalc4 provides four useful calculators in one handy application. Designed for use by Information Technology professionals and students alike.Functions include:- Binary to Octal to Decimal to Hexadecimal conversion. Enter a value in any of the four supported bases and the others are instantly displayed.- Subnet calculator. Determine the class, subnet...
- Software downloads 2009-08-06
- Cisco IP subnetting 101: Learn more about all 1s and all 0s subnet masks
- After reading David Davis' recent two-part series about the basics of Cisco IP subnetting, members asked for more. This week, David responds to one member's question about all 1s and all 0s subnet masks. I recently wrote a two-part series about the basics of Cisco IP subnetting ("Cisco...
- Technical articles 2005-08-04
- Cisco IP subnetting 101: Five more things you should know
- What is the best IP Subnet calculator?What is the best IP Subnet calculator?DavidWhat is the best IP Subnet calculator?I use two, Solarwinds and Wildpackets. Both are free downloads and while they both peform the same functions, there are different quirks in each. Also don't miss the free Tftp server software...
- Discussion threads 2005-07-14
- Cisco administration 101: What you need to know about EIGRP
- Enhanced Interior Gateway Routing Protocol EIGRP is one of the most popular internal routing protocols used by midsize and large companies. Not very familiar with this protocol? David Davis tells you what every network administrator needs to know about EIGRP. When it comes to internal routing protocols, the two...
- Technical articles 2005-09-29
- DOWNLOAD: Cisco IOS router: Lock it down in 10 steps
- .http://techrepublic.com.com/5138-6240-5577625.htmlAfter you take a look at this download, please post your feedback, ideas for future improvements, or further thoughts on this topic.Thanks,TechRepublic Downloads TeamPrivate IP addressesI don't have as many acronyms after my title as you guys so I may be totally wrong but I'm wondering if the section about...
- Discussion threads 2005-05-31
- Police your network with IPTraf
- You can't have too many network monitoring tools, and the open source community ensures that everyone has the right tool for his or her needs. Jack Wallen, Jr. shows you how to install and get started with a very flexible--and free--network monitor.If you're looking for a very simple, reliable network...
- Technical articles 2002-01-07
- IP Subnet Calculator Widget 1.5 (Mac)
- IP Subnet Calculator Widget will calculate the Network Address, Broadcast Address, and number of hosts in a subnet given an IP address and Subnet Mask. Subnet Mask may be entered in either dotted decimal notation or directly in number of bits masked.You may also click on the Subnet Mask button...
- Software downloads 2005-06-04
- Cisco administration 101: What you need to know about OSPF
- The Open Shortest Path First OSPF protocol is one of the most popular internal routing protocols used by midsize and large companies. Not very familiar with this protocol? David Davis tells you what every network administrator needs to know about OSPF in this edition of Cisco Routers and Switches. ...
- Technical articles 2006-11-02
- Network statements
- I was under the impression that the network statements in EIGRP didn't need any mask information, that they were the same as for RIP and IGRP ie #network 10.0.0.0. The article indicates that a wildcard mask is needed just like in OSPF
- Discussion threads 2005-10-07
- Track down suspicious network traffic with IPTraf filters
- The ability to track down suspect traffic isn't a talent we all have. With the help of IPTraf's simple-to-use filter definitions, this job becomes not only painless, but also fun. Join the games as Jack shows you filter definition with IPTraf.Recently, I took the time to discover a simple and...
- Technical articles 2002-01-21
- Save2FTP 3.0 (Windows)
- Save2FTP is an easy-to-use FREEWARE utility intended for automatically backing up your important data to remote FTP servers. It will help you to organize your backups and schedule automatic backups. Save2FTP also features an intuitive user interface making even the most advanced features easily accessible for beginners and professionals. It...
- Software downloads 2008-11-04
- SuperCool ZIP Backup 1.81 build 18 (Windows)
- SuperCool ZIP Backup software is a data backup, restore, and file synchronization program. You can use any drive in system to store the backup files in standard Zip format that can be transferred to remote machine by FTP or e-mail. It can also compare and synchronize files or folders.SuperCool ZIP...
- Software downloads 2005-04-08
- Kalahari Sun Slots 6.98 (Mobile)
- Return to Africa for a new adventure in slot machine fun! With 3 different free spins games and the fun Lucky Drums Jackpot, you'll dance to a tribal beat of African fun.During normal play the Diamond acts as a wildcard and substitutes for all symbols except scattered Africa symbols. Scattered...
- Software downloads 2009-10-04
- Getting to know Open Shortest Path First (OSPF)
- If you administer a large network with a variety of routers from multiple manufacturers, then OSPF is your best option as a routing protocol. Let Todd Lammle explain.This Daily Drill Down will introduce you to OSPF and how to configure basic OSPF in an internetwork. OSPF is a true Link...
- Technical articles 2001-08-09
- Troubleshoot Windows TCP/IP problems with our Route Utility
- When you're troubleshooting TCP/IP connectivity problems on a Windows network, you may need to investigate the current IP routing table and add or delete specific IP routes. Fortunately, Windows comes with a command line tool called Route that you can use to reveal and edit this type of information. Unfortunately,...
- Technical articles 2003-10-09
- << Previous
- page 1 of 1
- Next >>
