WAN and LAN setup for IPv6

Posted by neu242 on Server Fault See other posts from Server Fault or by neu242
Published on 2012-09-06T08:46:07Z Indexed on 2012/09/06 9:39 UTC
Read the original article Hit count: 168

Filed under:

networking

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routing

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freebsd

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IPv6

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subnet

We just got a IPv6 /48 range (a gateway and an IP address) for our company, but I'm unsure about how to set it up. We use FreeBSD 8.4 (pfSense 2.1) as a router/firewall.

Currently we have IPv4 setup with a WAN towards the internet, and a NAT-ed LAN behind it for office PCs.

We want to keep the LAN network for security, and we want IPv6 addresses from the /48 for all office PCs (without NAT).

The WAN is configured with the IPv6 gateway 1111:2222:3333::1/48 and interface address 1111:2222:3333::2/48. But when it's configured this way, I guess it's impossible to fit the LAN on a /64 within the /48?

I believe I should configure the WAN subnet on 1111:2222:3333:1::/64 and the LAN on a subnet like 1111:2222:3333:2::/64. Is this something I can configure myself, or do I have to ask the ISP to configure that routing for me?

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