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Beginner
Beginner

Cisco RV340 router IPv6 on BT ultrafast FTTP set up help

Hi All,

I am running BT ultrafast FTTP and I have replaced my BT smart hub with a Cisco RV340 router.

I have it all set up and it's working fine but I don't know how to set up IPv6. I'm stumped with the IPv6 WAN and LAN settings.

 

Here are the relevant setting pages. On the WAN page do I need to tick DHCP-PD and if so what do I put in the 'Prefix name' box? So far I am always showing the ipv6 WAN as 'down'

 

On the LAN page I have no idea!

Any help much appreciated. Thanks.

 

Screenshot_2020-07-11 RV340 Dual WAN Gigabit VPN Router.pngScreenshot_2020-07-11 RV340 Dual WAN Gigabit VPN Router1.png

7 REPLIES 7
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Beginner
Beginner

Re: Cisco RV340 router IPv6 on BT ultrafast FTTP set up help

Anyone help an ipv6 newby ?

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VIP Mentor

Re: Cisco RV340 router IPv6 on BT ultrafast FTTP set up help

Hello,

 

if you don't know the prefix, try and use the Rapid Deployment option via DHCP (page 49 of the attached guide).

 

https://www.cisco.com/c/dam/en/us/td/docs/routers/csbr/RV340/Administration/EN/b_RV340x_AG.pdf

 

Looking at the LAN page you posted, I think you have to select the DHCP-PD option as well. BT assigns /56 prefixes...

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Beginner
Beginner

Re: Cisco RV340 router IPv6 on BT ultrafast FTTP set up help

Thanks for that.

 

I may know the prefix if I knew what that meant! as I saved all the ipv6 config section pages from the old router.

What sort of number an I looking for? Every thing I have seems to look like an ipv6 ip address but the setting box in the cisco wan section errors if i try to enter a colon?

 

The section you linked seems to relate to setting up tunnels?

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Beginner
Beginner

Re: Cisco RV340 router IPv6 on BT ultrafast FTTP set up help

I guess I'm asking, what does a prefix name look like?

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VIP Mentor

Re: Cisco RV340 router IPv6 on BT ultrafast FTTP set up help

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Beginner
Beginner

Re: Cisco RV340 router IPv6 on BT ultrafast FTTP set up help

Thanks for the suggestion but no joy!

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Beginner
Beginner

Re: Cisco RV340 router IPv6 on BT ultrafast FTTP set up help

FWIW it turned out to be router advertisement turned off by default