![]() ![]() IPv4 and IPv6 connectivity read "No network access" restored from a System Restore point prior to the error uninstalled the software associated with the device (from the uninstall program appwiz.cpl)ĥ. uninstalled and reinstalled the network driver (from the Device Management tool devmgmt.msc)Ĥ. ![]() General failure." I haven't installed or uninstalled any software since it last worked two days ago. Safari is only $40 a month and has a huge wealth of resources like this which can really help you understand tricky subject like IPv6 which are often glossed over.I was unable to connect to my home network with my Win7 laptop, and when I went to ping, got the following: "PING: transmit failed. It's also available on Safari Books Online, which has a free trial. I highly recommend watching this series of videos which provides a high level of detail while still being very easy to watch - hammer it out on a Saturday morning and you'll feel much more comfortable about IPv6. You can optionally also send details like DNS to clients via RA so they have the correct details. You can setup DHCPv6 to assign and manage addresses, or you can use autoconfiguration - in autoconfiguration your router will tell devices (via Router Advertisments - RA) what the global subnet is, what the default gateway is, and the devices will then assign themselves an address based on what the RA contains. You can easily setup subnets within your range as well. You can statically assign addresses, for example make the router as 2001:0DB8:C21A::1 and assign a server as 2001:0DB8:C21A::2 and a printer as 2001:0DB8:C21A::3, etc etc. So maybe to keep things simple I decide I'll just use 2001:0DB8:C21A:0000:0000:0000:0000:XXXX, and I can cheat and write it out like 2001:0DB8:C21A::XXXX - hiding all those zeros in the middle. ![]() Here's an example: Lets say my ISP gives me 2001:0DB8:C21A::/48 - this basically means that all of the IPv6 devices on my LAN can use and address in the range of 2001:0DB8:C21A:XXXX:XXXX:XXXX:XXXX:XXXX This is where IPv6 gets really easy! So you will have a subnet - it'll start with a 2. ![]() Remember that NAT is an IPv4 feature that is not used with IPv6, and that you still need to allow access through your firewall before outside devices can connect to a device using IPv6. These addresses provide your devices with a unique IP address that can easily be accessed from the internet, providing you setup the firewall as such. Your ISP will provide this, and they will give you a whole subnet to use. What you want is a "global" unicast address. Link local addresses are generated automatically, and cannot be removed or disabled. Like the name suggests, link local is only local to the link - the address will not be available from other networks. These are easy to spot, they start with an F. You'll need to read up on IPv6 - it's confusing until you get the full picture!Īll devices using IPv6 will have at a minimum a link-local address. Thanks to /u/thedarkfreak I needed an IPv6 Router to send out RAs! The DC and the test server cannot ping each other via the subnet that I configured.īut the CAN ping each other via their link-local addresses.īut this is useless as the DC is not mapping their link-local address to their DNS name. The reverse is also the same, in that the DC cannot ping the test server (or any other servers that are on this subnet via IPv6). There are no ARPs, no ICMPs that leave with no response, nothing. Pinging fd6e:73df:b6c:ae9f::1 with 32 bytes of data: My test server is: fd6e:73df:b6c:ae9f:a3bc:2531:3a9f:64b0īTW - the test server successfully gets this IP address from the DHCP server so DHCP is working on my subnet.Īt this point I'd expect that I should be able to ping the DC from the test server by typing in on the test server cmd: My domain controller (also DHCP server) is: fd6e:73df:b6c:ae9f::1 I'll go into more detail on what not working means below. The issue I've come across is that only the Link-Local address is working, and not the subnet I configured. I'm setting up my lab to use IPv6 as I'm rolling out Direct Access and wanting to test that. ![]()
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