Failure to access nethserver from LAN

Nethserver 7.4

I have nethserver running as a guest on a proxmox host sat behind a vigor 2860 router. Everything works fine except i cannot access the server from the lan (using the hostname that public dns resolves). When i ping the server i see that DNS resolves to the internet facing hostname but it is not routing anything.

The nethserver lan ip is specified in the vigor routers “NAT DMZ hosts” (mapping public IP to LAN IP) and this is fine for accessing the server (and mail etc) from the internet

any pointers on diagnosing this appreciated - im not sure whether to start looking at the router or the nethserver. no significant config has taken place on either device

thanks in advance folks

I think this is your problem:

Please have a look if it helps.

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