Hello!
I have a problem I am too dumb to solve by myself…
And I hope that you can help me!
I installed a so called DreamPi on a Raspberry Pi Zero W2…
DreamPi is a software for the Raspberry and so the Raspi acts like a ISP (Internet Service Provider).
Now thats what happens:
- every Dreamcast gaming console back then had a built in 33 kbit/s Modem (in Europe and Japan; in US it was 56kbit/s) as standard and with a browser or in a game the Dreamcast can call a telephone-number to get access to the internet
- the Raspberry Pi has a 56k USB-Modem attached and is connected to the Dreamcast via telephone cable
- the Raspberry Pi receives the call from the Dreamcast and is additional connected to the Internet via WLAN - so it sends the packages to a gaming server and so I can play online with a gaming console from the year 1999…
This worked great when I only had a FritzBox Router without a firewall… Now I have a IPFire in use…
Now the present state is:
The Raspberry Pi gets a DHCP address out of BLUE…
(For example 192.168.178.10)
Blue Access (mac-address-filter) for the Raspberry was granted and so the Raspberry PI is allowed to access the internet through the firewall…
So far no problem for me setting this up…
The next thing the Raspberry does is to create a second IP-Address with the ending .98 in the present network (in the BLUE WLAN) for the Dreamcast…
(For Example 192.168.178 .98)
The Dreamcast then sets up its own IP-address to .98 and the IP packages are passed through the Raspberry to the WLAN…
And now my problem begins…
In the Firewall Logs the Dreamcast shows up with IP-Address .98 and the Mac-address of the Raspberry Pi…
Because it is not allowed to set up two IPs for one MAC-Address I am not able to grant BLUE Access to the Dreamcast…
And so every connection from the Dreamcast is blocked by the firewall because of the Mac-address-filter of the IPFire…
I don’t want to set the DreamPi to the green network because of 2 reasons:
First of all my NAS and important computers on are in that network.
Nothing the Raspberry should or needs to have access to.
And second: the best way to get into the network with the Raspberry Pi Zero W 2 is Wireless…
No additional Cable and no additional USB to network adapter is needed.
In my opinion BLUE is the best network for the DreamPi.
But: how can I solve this problem?
Disabling the MAC-filter is one idea… but: isn’t there a better way?
Thanks in advance for help!