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[ZdPo]

Hello all,

I need help how configure DIR-645 as IPv6 pass-through. I have from ISP IPv6 address with prefix 64. This address is on WAN interface and I need bridge (only IPv6) to intranet LAN, if is it possible.
On WAN interface is IPv4 too, but I need NAT-ed this communication.

By this page is configuring IPv6 pass-through is possible:
http://katr.labs.nic.cz/review/d-link-dir-645-rev-a1-firmware-101-2012-05-29/

Many thanks

Zdenek

[FurryNutz]

Link>Welcome!
What Hardware version is your router? Look at sticker under router.
Link>What Firmware version is currently loaded? Found on routers web page under status.
What region are you located?

What ISP Service do you have? Cable or DSL?
What ISP Modem do you have? Stand Alone or built in router?
What ISP Modem make and model do you have?

[PacketTracer]

Hi Zdenek,

studying the DIR-645 manual I can't discover any bridging function you desire. Hence DIR-645 works as IPv6 router which means you need a separate /64 prefix for use within your LAN being different from the one used on WAN.

But may be your internet access is of a type that doesn't need a global /64 prefix on WAN or in other words, the link local prefix fe80::/64 is sufficient for your WAN link and your global /64 prefix is for use within your LAN.

In this case the configuration at page 44 or 50 of the manual might meet your needs: Select "Set Static IPv6 Address Connection" and check the checkbox "Use Link-Local Address". Enter Default Gateway, DNS server addresses and finally your global /64 prefix for use inside your LAN (Edit: Not just the prefix but the LAN side address of the router selected from this prefix, e.g. <prefix>::1/64).

Edit2: Otherwise ask your ISP for a delegated global prefix for use within your LAN. Or maybe it comes automatically by DHCP-PD (prefix delegation). In this case you must select another internet connection type (different from "Static") and specify "Enable DHCP-PD" to get a LAN prefix.

PT