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How to request ipv6 prefix?

I have successfully gotten UTM started with IPV6 / Comcast.
They gave me a /64 prefix.

According to Comcast, to get a /56 prefix, just specify it in the IA_PD option. But where do I do that with Sophos UTM?

9.313-3

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0 RFCat_vk_01 over 9 years ago in reply to ben83

Hi ben83,
my UTM is talking directly to the ISP though a bridged modem.

Attached is a screenshot of the IPv6 tab from the UTM.

Ian
- ipv6 tab_1.jpg
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0 ben83 over 9 years ago in reply to RFCat_vk_01

thanks for the screenshot! if your sophos is indeed making the PPPoE connection itself its quite interesting that it works for you.
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0 adhodgson over 9 years ago

Hi,

For the record I also have the same info in my IPV6 screen, can post the screenshot if necessary. This was after ticking the IPV6 default gateway on the WAN interface.

Andrew.
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0 Remuflon over 9 years ago

I'm bumping this topic because we still cannot get a prefix from Comcast, even though we have ipv6 available and everything is ready to go.

Comcast says: just put in your IA_PD attribute in your DHCP request and you are good to go. But THERE IS NO IA_PD setting that I can find in Sophos UTM. There is on the internal DHCP settings, but that's not going to help.

The interface is "Ethernet".

I have no problem SSH into the server and editing config files, if someone would point me in the right direction.
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0 Dave Fl over 7 years ago in reply to Remuflon

Has anyone been able to get around this?
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How to request ipv6 prefix?

Submitted a Tech Support Case lately from the Support Portal?