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Unable to get IPV6 Router Advertisement not working

mark2741

Hi Everyone, I have been trying to get IPV6 Router Advertisements to work but unable to receive a default gateway. I'm currently getting an IPV6 address from the DHCP Server, but just not receiving the gateway through RA. I have tried multiple settings in RA with prefix and without but no luck. Can anyone shed any light on what I could be doing wrong?



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  • 0

    Hi,

    very easy. RA only works on the internal side. If your ISP is providing IPv6 via DHCP you should be receiving and FE80 in th every least as a gateway. When you try to use RA your choice of networks is only the internal one.

    Ian

  • 0 in reply to rfcat_vk

    Hi sorry don't think I explained that very well. Basically I have vlans on the lan side of the Sophos XG. I have been given a /48 from the isp and broken that up in to /64's. I have assigned address to the inside interfaces on the Sophos XG. I have added the prefix in to RA for the interface. But on my laptop I only receive an ipv6 address from my Windows DHCP server no Default Gateway from RA.

     

  • +1 in reply to mark2741

    Okay,

    Have you created a DHCP IPv6 server on the XG? Please remember the XG IPv6 is very basic and does not have all the features of the IP4. IPv6 and IP4 are treated as two seperate firewalls in the XG.

    With your RA configuration you will end up with multiple IPv6 addresses assigned to your laptop.

    Ian

     

    Update:- just tried your configuration on my XG but with the DHCP box not ticked. I received a gateway and two IPv6 addresses.

  • 0 in reply to rfcat_vk

    I have created the DHCP on the Sophos. My laptop gets ip from the Sophos but for a strange reason cannot get a default gateway.

     

    Thanks Mark

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