Refers to the 4th revision of the Internet Protocol, where addresses are usually displayed in the form of dotted decimals between 0-255. Ex: 169.254.0.1

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3answers
500 views

IPv6 is comming [closed]

Very soon, all of us will face one of the greatest changes in the global network in last 30 years: moving to the IPv6. So many system administrators will have to decide, how to handle this problem: ...
7
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5answers
4k views

Why is ipv6 128bit and not 64bit?

Computer processors moved from 32bit to 64bit. Why have IPs moved from 32bit to 128bit (skipping 64bit) ? EDIT: I did not intend to make a direct comparison. Just curious why IPs skipped 64bit.
2
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1answer
294 views

Empty IPv6 address causes DNS error on Macs running Apache Server

For a site I manage, http://archstl.org/, the DNS entry returns an empty (::) IPv6 address when I run $ host archstl.org in the Terminal. I think the errant IPv6 entry may be the cause of my problem: ...
8
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3answers
3k views

What determines whether the FQDN is interpreted as IPv6 or IPv4?

When I type a Fully Qualified Domain Name (FQDN) in my URL bar, the browser connects to some mapping table (where is this table stored? with the service provider?) that determines where the file ...
0
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1answer
381 views

How to assign two IP addresses (one DHCP, one static) to a NIC in OpenSolaris?

This should be mind-numbingly simple and basic, and yet I couldn't find how to do it, either in "man ifconfig", in the OpenSolaris docs site, or Googling in desperation. I'm using OpenSolaris 2009.06. ...
4
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2answers
3k views

how does ping resolve to ipv4 on one machine, but ipv6 on another?

Background I have two environments, TEST and STAGE. I use Microsoft Distributed Transaction Coordinator (MS DTC) with two linked 2008 SQL servers. A SQL job runs every couple of minutes and ...
1
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1answer
2k views

How do I rename a network interface using netsh?

I'm building my first Windows 2008 Server Core machine (running R2) and want to rename the IPv4 network interfaces to something more meaningful. It seems most likely that this is done using netsh ...
3
votes
5answers
429 views

Isn't NAT a MUST when a LAN uses rfc 1918 private IPs?

Isn't NAT a MUST when a LAN uses rfc 1918 private IPs? Can an organization assign its hosts with private IPs and still communicate with the external world without NAT? how can an internal host with a ...
2
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2answers
3k views

Static IPv4 and dynamic IPv6 on same interface

I am trying to set up a CentOS 5.4 box to use a static IPv4 address, while getting a dynamic IPv6 address at boot time. I have only one interface, apart from the loopback interface, eth0. It has a ...
2
votes
2answers
3k views

Simple road warrior IPv4 VPN configuration in Cisco IOS

I'm looking to setup a reasonably simple road warrior VPN configuration on our Cisco routers. Frustratingly, I've been searching for this but cannot find a simple complete guide. Multiple (not ...
3
votes
5answers
354 views

Where to find information on the IPv4 crunch, why to worry, what to do?

Where do I get information on the IPv4 crunch (what will happen, transition to IPv6, etc.)? What should one do to prepare (if anything)? Ars Technica ran "A decade's worth of IPv4 addresses" and ...