IPv6 news and information » Blog Archive » How to enable IPv6 on Apache2. Linux IPv6 HowTo Guide - Usage. 17.3.2.1. List all IPv6 netfilter entries Short Extended 17.3.2.2. List specified filter 17.3.2.3. Insert a log rule at the input filter with options 17.3.2.4. 17.3.2.5. 17.3.2.6. Using older kernels (unpatched kernel 2.4.5 and iptables-1.2.2) no type can be specified Accept incoming ICMPv6 through tunnels Allow outgoing ICMPv6 through tunnels Newer kernels allow specifying of ICMPv6 types: 17.3.2.7. Because it can happen (author already saw it to times) that an ICMPv6 storm will raise up, you should use available rate limiting for at least ICMPv6 ruleset. 17.3.2.8. Here an example is shown for a ruleset which allows incoming SSH connection from a specified IPv6 address Allow incoming SSH from 2001:0db8:100::1/128 Allow response packets (at the moment IPv6 connection tracking isn't in mainstream netfilter6 implemented) 17.3.2.9.
To accept tunneled IPv6-in-IPv4 packets, you have to insert rules in your IPv4 firewall setup relating to such packets, for example 17.3.2.10. VERY RECOMMENDED! IPv6 and ip6tables « ID's blog. IPv6 PTR Record configuration in BIND. IPv6 to PTR Record Reverse DNS v6. Reverse DNS v6. IPv6 Address Calculator. In some configurations IPv4 addresses can be written or used in IPv6 notation or they become part of an IPv6 address. This form allows you to convert from IPv4 to IPv6 and back. Depending on your application you may have to shift the IPv6 segments. 6to4 and 6rd are transitional mechanisms that will be used until native IPv6 is universally available.
With both mechanisms you can assign an IPv6 prefix to an entire network based on the IPv4 address of the gateway. Both use the 6in4 encapsulation to transport IPv6 packets inside IPv4 packets between the border gateway of the local network and the gateway servers outside. 6to4 is a public service, everybody can configure a gateway to use it - no subscription is necessary, since gateways will always know where to route responses based on the prefix. 6rd is the provider internal equivalent of 6to4.
Teredo IP Decoding Teredo client IP: IPv6 test - IPv6/4 connectivity and speed test. Test your IPv6.