Junos OS

I have configured our RADIUS server to assign an framed-ipv6-prefix to the CPE.

When I lookat the access-accept return from the RADIUS it shows the allocated /56 being sent to the LNS. When I complete "sho subscribers" it shows the subscriber with the allocated IPv6 address, but the CPE only has the Link-Local address. My conclusion to this is:

The RADIUS returns the correct IPv6 address to the LNS (MX240) but the LNS is not forwarding this on, via the dynamic-profile, to the CPE.

I have configured the following:

set dynamic-profiles dyn-lns-profile interfaces "$junos-interface-ifd-name" unit "$junos-interface-unit" family inet6 address $junos-ipv6-address

And I have also tried with the following:

set dynamic-profiles dyn-lns-profile interfaces "$junos-interface-ifd-name" unit "$junos-interface-unit" family inet6 unnumbered-address "$junos-loopback-interface"

And neither of them work. The si interface is configured as follows:

set interfaces si-1/0/0 hierarchical-scheduler maximum-hierarchy-levels 2
set interfaces si-1/0/0 encapsulation generic-services
set interfaces si-1/0/0 unit 0 family inet
set interfaces si-1/0/0 unit 0 family inet6

This is stopping us being able to complete our IPv6 testing and dual-stack.

As an add on, I can get the pool working fine, but this is no good as we need the RADIUS to assign the address.

Any help would be greatly appreciated.

Thank you

Hi,

IPv6 address is assigned via NDRA or DHCPv6 PD.

Under the Dynamic-Profile.

protocols {

    router-advertisement {

        interface "$junos-interface-name" {

            other-stateful-configuration;

            dns-server-address 2001:4860:4860::8844;

            dns-server-address 2001:4860:4860::8888;

            prefix $junos-ipv6-ndra-prefix;

        }

    }

}

For DNS,

show system services 

dhcp-local-server {

    dhcpv6 {

        overrides {

            process-inform;

        }

        group test {

            interface si-x/x/x.0;

        }

    }

Regards,

Rahul 

Hi Rahul,

Apologies, I also tried the $junos-ipv6-ndra-prefix command and that also did not work. The CPE is just not getting the IPv6 prefix.

Hi Clive,

CPE receiving IPv6 RA from MX? Did you tried with /64 prefix?

Regards,

Rahul

Hi Rahul,

The CPE is not receiving the prefix. Or does not appear to be receiving the prefix.

Thanks

Kindly share the dynamic-profile configuration and return attributes from radius.

Regards,
Rahul

Hi Rahul,

It appears that the CPE was using IANA and not NDRA.

This is now working and assigning the corect address and prefix.

Thank you for your help Rahul

Hi Clive,

Would it be possible to advise how you got the IPv6 address assigned to the technicolors WAN? 

I'm assigning via radius and I've tried both delegated-ipv6-prefix and framed-ipv6-prefix and although I can see them in the routing table on the LNS (mx104) it's never assigned to the technicolor.  

I'm guessing as the technicolor needs it's WAN assigned as well. 

I've tried adding the following to assign the WAN too but it's doesn't seem to be working:

edit access
set address-assignment pool dhcpv6-pd-pool family inet6 prefix 2a02:xxxx:xxxx::/48
set address-assignment pool dhcpv6-pd-pool family inet6 range r1 prefix-length 64
set address-assignment pool ndra-2010 family inet6 prefix 2a02:xxxx:xxxx::/48
set address-assignment pool ndra-2010 family inet6 range L prefix-length 64
set address-protection

edit system services dhcp-local-server dhcpv6
set overrides delegated-pool dhcpv6-pd-pool
set access address-assignment neighbor-discovery-router-advertisement ndra-2010

I wonder if you could offer a pointer as to where I may be going wrong or what I'm missing?

thanks