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ipv6 mask on WAN side - Can it be less than 64

Hello,

I try to setup IPv6 on UTM9 latest firmware. My successfully installations have always a /64 on WAN side and a /64 on internal one. Now at a customer place, they receive a /124 on WAN side and /64 on internal. Problem is that I can't get traffic from WAN interface to his ipv6 GW. From outside the net I can ping the WAN ipv6 not the internal one.

Does anyone already face this problem and if yes could solve it?

Daniel

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0 Christian Wolter over 2 years ago

Hello Daniel,

Normally you don't use subnetting with IPv6, the provider must send a IPv6 Prefix with a lower network than /64, for example /56 or /48. Then you can use your own network /64 on the internal site with the provider Prefix.

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0 Daniel Huhardeaux over 2 years ago in reply to Christian Wolter

But it doesn't. As written, only a /124 is given. With other operators I have a /48 that I split in two /64 for the UTM, it works like a charm
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0 Daniel Huhardeaux over 2 years ago in reply to Christian Wolter

But it doesn't. As written, only a /124 is given. With other operators I have a /48 that I split in two /64 for the UTM, it works like a charm
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