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- Set up Port Address Translation (PAT) in the Cisco IOS
- NAT is a valuable tool for admins, both for conserving public IP addresses and securing internal resources. Several variations of NAT are available, including its cousin PAT. See the differences and learn how to set up PAT using the Cisco IOS.Port Address Translation PAT is a special kind of Network...
- Technical articles 2002-05-14
- Securing the Edge: Advanced networking with the Cisco IOS firewall
- Follow these step by step instructions to get started with a Cisco IOS Firewall.The configuration of the IOS firewall feature set is basically an interaction between extended access lists and inspection rules. Implemented in its simplest and most common form, it’s used on Internet edge routers to block all incoming...
- Technical articles 2001-11-08
Additional Resources
- Strengthen security by implementing Network Address Translation
- Mike Mullins explains why you should rethink implementing Network Address Translation. Here are the issues to consider. Worried about security issues? Who isn't? Automatically sign up for our free Security Solutions newsletter, delivered each Friday, and get hands-on advice for locking down your systems. If you...
- Technical articles 2005-03-01
- Troubleshooting network address translation
- Network Address Translation, or NAT for short, has becomeone of the most common networking technologies over the last several years. NATtechnology, which is designed to compensate for a global shortage of IPaddresses, is used in everything from Microsoft's Internet Connection Sharingcomponent to all of the consumer grade broadband routers that...
- Technical articles 2006-09-04
- Selecting the best address translation option for your network
- If you have more PCs than IP addresses, you are probably looking for a simple, yet cost-effective solution. Address translation is what you want, and Debra Littlejohn Shinder is here to help you out!Address translation is the process of “translating” multiple IP addresses from the private address range to one...
- Technical articles 2001-06-27
- Configure static NAT for inbound connections
- Someone recently asked me how to configure Network Address Translation NAT so that computers on the Internet could access his internal Web and mail server through his Cisco router. This requires configuring a static NAT translation between the dedicated public IP address and the dedicated private IP address. Here's how...
- Blog posts 2007-06-06
- How to configure STATIC IP from ISP to the local network
- Hello,I have my network deployed very well.Well, I had to host FTP and WEB MAIL SERVICES, so I purchased about three static IP adddress from ISP.Where am I suppossed to configure this IP in the server. I just need to configure FTP on PC and the other static ip address...
- Discussion threads 2007-04-15
- Tech Tip: Use Cisco's NetFlow technology to detect worms
- By Jonathan YardenThere are numerous ways to monitor your networkand protect it from Internet intrusions. Companies commonly use afirewall for network protection. Although firewall logs oftenprovide a lot of information regarding intrusion attempts,sometimes it's too much information to sort through when there's aproblem you can't resolve quickly. ...
- Technical articles 2003-12-08
- Setup Small Office Network
- Hi! Can someone help me with this setup, any help would be really appreciate. Thank you.we just open new office with 5 user. here is what i got.1 DSL line with static IP1 cisco router catalyst 26001 cisco switch catalyst 2950 (i will use vlan1)1 domain controller act as AD,DNS,DHCP...
- Discussion threads 2008-08-16
- setting up a wireless network
- blessings y'all! I would like to know the simplest way to setup a wireless network. Also, i would appreciate suggestions as to what equipment i will need to set it up.thanks in advance for all the help.RE: [i]the simplest way to setup a wireless networkGet someone else to do it...
- Discussion threads 2008-11-11
- Strengthen security by implementing Network Address Translation
- If it is so wonderful, why don't ISP's support it?I use an ADSL modem that supports NAT. It also has a 100Mb/sec Ethernet 4-port hub integral to it. I have three static machines on my SOHO network and a transient sales rep. I bought this modem because it provides...
- Discussion threads 2005-03-03
- Router Configuration 101: Connecting the router to the Internet
- This three-part series reviews the basics of setting up a Cisco router. Part 1 discussed how to boot up your new Cisco router, and part 2 explained how to apply IP addresses to interfaces and enable them for use. Now, learn how to connect the router to the Internet using...
- Technical articles 2005-03-17
- Build Your Skills: Learn why NAT can cause VPN connection problems
- Why network address translation NAT on an Internet router keeps the VPN client from making the connectionMany a network administrator has tried to set up a virtual private network VPN client from a workstation with a nonroutable private IP address only to find out—amid much frustration—that the network address translation...
- Technical articles 2001-11-08
- Configuring DHCP for static IP
- Is there a method to configure a router that is DHCP served for a static IP in order to use a network security camera offsite?Running Domain or Peer to Peer/Workgroup?Is the router the DHCP server for the network?I am subscribed to an ISP that uses DHCPCharter and want to use...
- Q&A 2004-10-05
- Set up NAT using the Cisco IOS
- Network address translation NAT has become one of the key components of today's corporate networks attached to the Internet. See how to set up and manage NAT using the Cisco Internetwork operating system.Network address translation NAT is one of those rare information technology buzzwords that does exactly what its name...
- Technical articles 2001-10-18
- CISCO EASY VPN SERVER setup problem. Can connect but can not ping.
- This is my first time setup a CISCO 1811 router as EASY VPN server. I have read http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6586/ps6635/ps6659/prod_white_paper0900aecd80313bf2.pdf and did the similar configure.When I used Cisco VPN Client 5.0.04.0300 to connect it from outside, it connected to the router successfully. The VPN client got assigned IP 172.16.0.2 from router.But the...
- Discussion threads 2009-01-22
- Learn how to use the NAT Order of Operations
- Earlier this year, David Davis wrote an article about the Cisco IOS order of operations, and now, he's delving deeper into the topic. Check out these three scenarios to get a better understanding of how to use the NAT Order of Operations. Earlier this year, I wrote an article...
- Technical articles 2006-06-08
- Public/ Private IP addresses
- General Question:I work in a small office with about a dozan users. Our network setup includes NT 4.0 server and a win 2000 server. Our new ISP provider gave me a cluster or range of IP addresses. To make my network work I use these addresses for our network but...
- Discussion threads 2008-04-10
- Talking Shop: Passing the Win2K networking exam
- Passing Microsofts 70-216 examYou can't become a Windows 2000 MCSE without passing Microsoft's 70-216 exam, "Implementing and Administering a Windows 2000 Network Infrastructure." The 70-216 exam is a core MCSE requirement. Candidates are given 140 minutes to complete the test. As of this writing, the network infrastructure administration exam is...
- Technical articles 2002-02-08
- Learn to configure Cisco IOS NAT on a stick
- A well known NAT configuration is called "NAT on a stick." Besides having a funny name, NAT on a stick can be very useful to network administrators. In this article, learn what NAT on a stick is and how it can help you. What is Network Address Translation? ...
- Blog posts 2008-04-24
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