Hi,
We have Sophos UTM 9.2 with IPv6 enabled. We have 2A02:****:****:400::/56 subnet
Wan interface: 2a02:****:****:401::2/64
Wan gateway: 2a02:****:****:401::1/64 (Mikrotik router to ISP)
Lan interface: 2a02:***x:****:402::1/64
IPv6 works when I assign a static IPv6 address to a Windows 7 client on the lan segment of the UTM. The UTM will route it and I have internet connectivity.
But I want the clients to get the IPv6 address by them self, so I enabled the prefix advertisement on the lan interface. This however isn't working for me.
I can see the clients do router advertisements with wireshark but the UTM doesn't respond. Also when I do a multicast ping to FF02::2 (the all ipv6 routers address) the UTM doesn't respond.
I have also tested this with a Mikrotik router, it does respond to the FF02::2 ping and immediately delegates prefixes.
What can I do to make the IPv6 prefix advertisement to work? And shouldn't the UTM respond to the FF02::2 ping because it's a router?
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