hi thks,I will opt for your 2nd option.,Will it means my ISDN device will need to do port direction of UDP 500 & IP 50 to my private IP address of PIX outside interface which connected to my ISDN device ethernet port since my ISDN device doing NAT?
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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...