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You'll assign the address provided by your ISP to the outside interface and use the block of addresses on the inside.
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You'll assign the address provided by your ISP to the outside interface and use the block of addresses on the inside.

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does it mean I will get two IP ranges: one for the inside and one for the outside
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does it mean I will get two IP ranges: one for the inside and one for the outside

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INTERNET ----- ASA ---- LAN<br />
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That is what we have today. the outside interface has got a public IP e.g. 80.1.1.1, the inside interface has a private IP and is the default gateway for my LAN (e.g. 10.10.10.1).<br />
And of course there is NAT.<br />
<br />
How is it going to work with ipv6? There is no NAT, I will get a block of ipv6 addresses from my ISP... and then? :)
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INTERNET ----- ASA ---- LAN

That is what we have today. the outside interface has got a public IP e.g. 80.1.1.1, the inside interface has a private IP and is the default gateway for my LAN (e.g. 10.10.10.1).
And of course there is NAT.

How is it going to work with ipv6? There is no NAT, I will get a block of ipv6 addresses from my ISP... and then? :)

IPv6 inside/outside ASA or router

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cisco

Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the basic NAT firewalls found in routers. These devices implement techniques such as stateful packet inspection, deep packet inspection, and content filtering; and may include built-in antivirus and anti-malware protection.