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Cisco 890 and ipv6

Greetings fellow Netwroking friends.

I have a quick question, I am hoping there's an easy answer to.

We were looking to deploy Windows DirectAccess, and as a part of that, it requires some form of ipv6 support.

Our office, like many, uses a cisco 890 as an edge device, the outside port (G0 and FE8) have public addresses and everything else is NATT'd to the internal network, the device also has 8 L2 switchports.

I need a way to get the ipv6 addresses to the windows box, as MS Direct Access does not support NAT.

I have currently:

interface FastEthernet8

description 123.net 50U/50D Fiber Connect

bandwidth 50000

ip address 216.234.xxx.xx 255.255.xxx.xxx

ip flow ingress

ip flow egress

ip nat outside

ip virtual-reassembly max-reassemblies 128

zone-member security outside

duplex auto

speed auto

ipv6 address xxxx:xxxx:FFFF:FF1B::2/64

!

!

And I was hoping to do

interface Vlan2607

xxxx:xxxx:FFFF:FF1B::3/64

!

!

And then

interface FastEthernet1

description soDetroitAccess VLAN

switchport trunk native vlan 2607

!

!

and make the ipv6 subnet availavble on one of the internal switch ports, so I can then address the windwos server interface on teh same network, but I get :

%Vlan2607: Error: xxxx:xxxx:FFFF:FF1B::/64 is overlapping with xxxx:xxxx:FFFF:FF1B::/64 on FastEthernet8

Anyone have any suggestions or ideas on how to walk the network through my router ?

TYIA.

1 REPLY
VIP Super Bronze

Re: Cisco 890 and ipv6

Hi,

Under each interface, can you try your ipv6 address and add eui-64 to it?

xxxx:xxxx:FFFF:FF1B::3/64 eui-64

HTH

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