PGNd <d...@pgnd.us> wrote:

> In my shorewall6-lite rules, I have added
> 
>       Ping(ACCEPT)   net:[2001:XXX:XXX4:XXX::2]/64,[2001:XXX:XXX5:XXX::]/64   
> all
>       Ping(ACCEPT)   net                                                      
> all   -   -   -   -   5/sec:100

You need a load of other ICMP traffic allowed if IPv6 is going to work. What 
does "ip -6 neighbour show" give you ? I'm going to guess that it doesn't 
include 2001:XXX:XXX4:XXX::1 because you've blocked all ICMP but Ping. One of 
the things that will break is neighbour discovery :
http://www.sixscape.com/joomla/sixscape/index.php/technical-backgrounders/tcp-ip/ip-the-internet-protocol/ipv6-internet-protocol-version-6/icmpv6-internet-control-message-protocol-for-ipv6

Just one of several areas where you need to unlearn what you learned about IPv4.


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