I am currently using Sophos UTM 9.1 and would now like to realize a dual-stack setup. Because I do not manage the whole network infrastructure (hosted at OVH) and the firewall is just virtualized, I am required to use NDP proxy, otherwise my VM's wont be seen from the outside.
Now there are two ways to achieve this:
1) Execute these commands via SSH or some startup script:
sysctl -w net.ipv6.conf.all.proxy_ndp=1
ip -6 neigh add proxy dev eth0
ip -6 neigh add proxy dev eth0
2) Compile ndppd (ndppd) and copy the binary to the firewall. Then search some way to start it as a service. Didn't find anyway to include own daemons :/
Now I'm struggling a bit. Method 1 does not sound really clean and it is really annoying to add every IPv6 which gets used via "ip -6 neigh". The "ndppd" service would be much better, but how can I use it?
Is there any folder where I can put startup scripts? Anyway to run ndppd as a daemon? Or does any direct solution from Sophos exist? Thanks in advance for your answer,
Regards
NeoXiD
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