by default, any host connected to a pix interface can ping that particular interface only. e.g. inside host can ping pix inside interface; or dmz host can ping pix dmz interface. as far as i know, there is no workaround.
First of all, PIX doesnt allow ping across its interfaces (i.e. inside subnet cant ping the DMZ or the outside interfaces of the PIX). But in order to allow a subnet to ping the interface it's directly connected to, apply: "permit icmp any " command.
In order for subnets connected to different interfaces to ping each other, you need to make sure that address tranlsation is configured properly. For example, in order for the DMZ subnet hosts to ping internal servers, you might need to apply: static (inside,dmz) netmask in order for the internal subnet to be self-translated to DMZ.
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...