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IPv6 and DNS – Getting your DNS infrastructure ready for IPv6

You can make your named network services available via IPv6 with a few simple steps.  First, your DNS server or DNS service provider should first hand out AAAA DNS records (pronounced quad-A record) which map hostnames to IPv6 addresses.  Second, you should provide PTR records to allow IPv6 Reverse DNS (rDNS) lookups.  Finally, you should take steps to make the DNS server itself reachable via IPv6. Setup your DNS Server to start serving AAAA rec…


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ICMP and Security in IPv6

In the previous installment of our series of IPv6 posts, we covered some common myths regarding IPv6. In this post, we’ll talk about how the role of ICMP has changed in IPv6 compared to IPv4. In IPv4, ICMP provides error reporting, flow control and first-hop gateway redirection. This functionality, which is also available in IPv6, is usually not essential to the operation of your network. With IPv6, however, ICMP has gained a much more sig…


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News@Cisco Week in Review and Look Ahead: February 21-25

How was your week? Well, here at Cisco we had another exciting week filled with interesting technology stories and news. Here’s what happened… 1.) Mobile Technology for Smarter Cars Today, the only types of collision avoidance systems in cars are expensive radar- and camera based systems, which are few and far between. However, if the U.S. Department of Transportation had its way much cheaper warning systems would be installed in all new ca…


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Tolly Report: Cisco 300 Series Managed Switches

…istently low latency at all frame sizes Best price/performance among switches tested Most extensive feature set: IPv6, traffic shaping and rate limiting, scope of GUI-based configuration Lowest power consumption in 2 of the 3 classes tested, and best-in-class power efficiency overall Most extensive set of IPv6 protocol and application support Best usability with a simplified user interface delivering both basic and advanced capabilities in an int…


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How to get IPv6, now

…living under a rock, you should know by now that the IPv4 address pool is exhausted and you need to start using IPv6.  In fact, you may even be convinced.   How can you get your network connected to the growing IPv6 capable Internet, ideally in time for World IPv6 Day?  Start with your Internet service provider (ISP).  Although not every ISP currently provides IPv6 service, the list grows in proportion to customer demand.  Free, Comcast, and Sof…


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