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6

When I resolve your domain name, I get back three different AAAA records: www6.plista.com. 1800 IN AAAA 2a01:4f8:160:5102::2 www6.plista.com. 1800 IN AAAA 2a01:4f8:151:5021::2 www6.plista.com. 1800 IN AAAA 2a01:4f8:191:8075::2 I can only reach one of those IP addresses (2a01:4f8:160:5102::2). When I ...


5

If you have a significant users accessing your site, then some of them will be doing so through a NAT. And using a NAT for this does decrease reliability of the connection. If there are any competitors to your service, then reliability of the site does affect how many users use your site and how many use your competitors. And unless the government has ...


4

The information they need from you is the name(s) of your DNS server(s). You can chose to set up your own authoritative DNS servers for that purpose, or you can chose to use one of the many providers of authoritative DNS servers. Some of them are free some are not, some supports RDNS for IPv6 some do not. Since the information you need to give the provider ...


4

Immediately? No, it won't make much difference. Most people in the world have an IPv4 address, so you won't miss out. But at the same time - the pressure to do IPv6 is steadily increasing as IP addresses are becoming exhausted. It won't be too much longer before there'll be significant numbers of people who can't speak to IPv4 only services.


4

Best to ping a special all nodes on a link multicast address - ff02::1 - and wait for the responses: ~ $ ping6 -I eth0 ff02::1 PING ff02::1(ff02::1) from fe80::a11:96ff:fe04:50cc wlan0: 56 data bytes 64 bytes from fe80::a11:96ff:fe02:50ce: icmp_seq=1 ttl=64 time=0.080 ms 64 bytes from fe80::1eaf:f7ff:fe64:ec8e: icmp_seq=1 ttl=64 time=1.82 ms (DUP!) 64 bytes ...


3

Short answer: IPv6 should be enabled on all servers. Longer answer: Three out of five RIRs are so short on IPv4 addresses that rationing is a reality. And another RIR will run out early next year leaving Africa as the only region in the world without a shortage of IPv4 addresses. Major content providers deployed dual stack in 2012. And in doing so they ...


2

You want DHCPv6 if the network administrator should have control over who gets (which) IPv6 addresses, e.g. because they need to be in sync with AAAA DNS records, or if you don't want to tell the outside your MAC addresses (i.e. what hardware vendors you use), but don't want to use privacy extensions either, e.g. to still use permanent IPv6 addresses, or ...


2

Well. On the server side, specifying "proto" twice doesn't actually do anything - "proto udp6" will make it bind a dual-stack socket to handle v4+v6, overwriting the "proto udp" in the previous line. On a 2.3 client, having two remotes, with "udp6" and "udp" is the way to go, as the old socket code cannot failover itself properly. On a git master ...


2

Band-aid: Login to your modem and disable IPv6 Stateless and Stateful (DHCPv6) Auto-configuration. Also check that DHCPv4 isn't enabled, it's enabled by default. This will just leave you without IPv6 support. As Michael mentioned above, IPv6 isn't required by very many websites yet, but with IPv4 exhaustion really happening right now (like you can't get ...


2

Actually that is the error. You forgot the trailing period on your NS record.


2

In a word, yes. Their message means they are willing to have you set up a BIND server to control rDNS records yourself for the IPv6 block you have been allocated.


2

Banning per /128 does not scale when a subnet of /64 size is used for an attack. You will end up with 2^64 entries in the table, potentially causing a denial of service. End-users will always receive a /56 per global address assignment policy. Businesses will always receive a /48 per global address See: https://tools.ietf.org/html/rfc6177 /128 should never ...


1

I don't think you can do this with just router advertisements. My understanding here is that you want the following setup: 2001:DB8::/48 via cisco default via linux The problem is that router advertisements don't let you specify static routes. They just tell all the hosts what subnets are available on the local network (meaning they can be reached ...


1

DHCPv6 has many features not present in SLAAC. Most of those features are rarely needed. There is however one DHCPv6 feature, which would be useful in many cases. That is prefix delegation. If you are a network administrator at an ISP, that one feature may be enough for you to make it worthwhile to deploy a DHCPv6 server. If you are not working for an ISP, ...



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