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Hello,

running Mame with the -log option I find the line "Network interface -1 not found", either with the hp9k370 (or 360) and the ct486 machines.

Supposedly I can't set any network because of that.

How to fix it?

If you're running under Windows, you need to install the OpenVPN TAP/TUN driver and create a TAP adapter first. Then you can select it as the active network adapter using the in-emulation menu.

I'm running Linux so I used taputil.sh to create the tap:


$ sudo -s ./taputil.sh -c web 192.168.2.30 192.168.2.99


$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
loopback 0.0.0.0 255.0.0.0 U 0 0 0 lo
192.168.2.30 192.168.2.99 255.255.255.255 UGH 0 0 0 tap-mess-1000-0


$ ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 1000
link/ether 18:c0:4d:1f:3b:fe brd ff:ff:ff:ff:ff:ff
3: tap-mess-1000-0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 1000
link/ether 5e:8e:a5:87:fd:e4 brd ff:ff:ff:ff:ff:ff


$ mame hp9k370 -sl2 98643 -hard hp9.chd -rp /opt/mamer/ -window -mouse -log


error.log:
...
...
[:sl2:98643:lance] Network interface -1 not found
...
...

Any ideas?

Sorry for the late response, I've been away. Under Linux, MAME creates the tap adapter for you. Perhaps the adapter you're creating is conflicting with what MAME wants to do, or possibly there's a permission problem working with /dev/net/tun?

MAME can't create the TAP adaptor on Linux, which is why you have to use taputil.sh. It used to (as in circa 2013) work really well, but I haven't followed its progress much.

You probably have a hp9k370.cfg (or similar), or possibly a default.cfg which sets the interface number to -1 (it should be zero, and zero is the default when not set).

Many thanks to both of you for replying.

Actually I've found the "-1" in the hp9k370.cfg file and modifying to "0" eliminates the error message in the error.log file.
I haven't found any example on how to set the interface number via command line.

What I'd like is to create a bridged network between 2 machines that are hosted on the same PC and I'm not sure that the taputil.sh script is the right choice for that.

Any suggestions would be very appreciated, thank you so much.

I seem to remember this working for me a while back
The tutorial is for qemu but it should work for MAME too.

I've been struggling for months and now here is the solution, "oldie but goodie".

I'm so grateful to all of you, it works great!